Have a query? Ask a Tutor!!

Access to best educators and exclusive paper discussions

Offsite Campus Turito Championship

Can’t find what you’re looking for?

Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly

Mathematics

Functions

Easy

Question

The set of all values of a for which the function $f colon R rightwards arrow R text given by end text$
$f left parenthesis x right parenthesis equals x cubed plus left parenthesis a plus 2 right parenthesis x squared plus 3 a x plus 5 text is one-one is end text$

$[- 2, 4]$
$(1, 3)$
$[1, 4]$
$(1, 5]$

The correct answer is: $left square bracket 1 comma 4 right square bracket$

$text If end text f text is one-one then end text f text is increasing function. end text f to the power of straight prime left parenthesis x right parenthesis equals 3 x squared plus 2 left parenthesis a plus 2 right parenthesis x plus 3 a greater than 0 straight for all x element of R not stretchy rightwards double arrow straight capital delta less than 0 not stretchy rightwards double arrow 4 left parenthesis a plus 2 right parenthesis squared minus 4 times 3 times 3 a less than 0 a squared minus 5 a plus 4 less than 0 not stretchy rightwards double arrow 1 less than a less than 4$

Related Questions to study

Let f: (-1,1) → B, be a function defined by $f left parenthesis x right parenthesis equals t an to the power of negative 1 end exponent fraction numerator 2 x over denominator 1 minus x squared end fraction$ then f is both one-one and onto when B is the interval

Let f: (-1,1) → B, be a function defined by $f left parenthesis x right parenthesis equals t an to the power of negative 1 end exponent fraction numerator 2 x over denominator 1 minus x squared end fraction$ then f is both one-one and onto when B is the interval

MathematicsFunctions

$text The function end text f colon left square bracket 0 comma straight infinity right parenthesis not stretchy rightwards arrow left square bracket 0 comma straight infinity right parenthesis text defined by end text f left parenthesis x right parenthesis equals fraction numerator x over denominator 1 plus x end fraction text is end text$

$text The function end text f colon left square bracket 0 comma straight infinity right parenthesis not stretchy rightwards arrow left square bracket 0 comma straight infinity right parenthesis text defined by end text f left parenthesis x right parenthesis equals fraction numerator x over denominator 1 plus x end fraction text is end text$

MathematicsFunctions

Let A = { x ε R : x is not a positive integer }. Define a function f : A → R as $f left parenthesis x right parenthesis equals fraction numerator 2 x over denominator x minus 1 end fraction text then end text f text is end text$

Let A = { x ε R : x is not a positive integer }. Define a function f : A → R as $f left parenthesis x right parenthesis equals fraction numerator 2 x over denominator x minus 1 end fraction text then end text f text is end text$

MathematicsFunctions

parallel

$text If end text f colon N not stretchy rightwards arrow bold italic R text is defined by end text f left parenthesis 1 right parenthesis equals negative 1 text and end text f left parenthesis n plus 1 right parenthesis equals 3 f left parenthesis n right parenthesis plus 2 text for end text n greater than 1 comma text then end text f text is end text$

$text If end text f colon N not stretchy rightwards arrow bold italic R text is defined by end text f left parenthesis 1 right parenthesis equals negative 1 text and end text f left parenthesis n plus 1 right parenthesis equals 3 f left parenthesis n right parenthesis plus 2 text for end text n greater than 1 comma text then end text f text is end text$

MathematicsFunctions

$text Define end text f colon Z not stretchy rightwards arrow Z text by end text f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign center center columnspacing 1em rowspacing 4 pt end attributes row cell x divided by 2 end cell cell left parenthesis x text is even end text right parenthesis end cell row 0 cell left parenthesis x text is odd end text right parenthesis end cell end table close text then end text f text is end text$

$text Define end text f colon Z not stretchy rightwards arrow Z text by end text f left parenthesis x right parenthesis equals open curly brackets table attributes columnalign center center columnspacing 1em rowspacing 4 pt end attributes row cell x divided by 2 end cell cell left parenthesis x text is even end text right parenthesis end cell row 0 cell left parenthesis x text is odd end text right parenthesis end cell end table close text then end text f text is end text$

MathematicsFunctions

$text If end text f colon R not stretchy rightwards arrow R text defined by end text f left parenthesis x right parenthesis equals x comma text if end text x greater than 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 5 x minus 2 comma text if end text x less or equal than 2 comma space space text then end text f text is end text space$

$text If end text f colon R not stretchy rightwards arrow R text defined by end text f left parenthesis x right parenthesis equals x comma text if end text x greater than 2 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 5 x minus 2 comma text if end text x less or equal than 2 comma space space text then end text f text is end text space$

MathematicsFunctions

parallel

For real x, $text let end text f left parenthesis x right parenthesis equals x cubed plus 5 x plus 1 comma text end text$ then

For real x, $text let end text f left parenthesis x right parenthesis equals x cubed plus 5 x plus 1 comma text end text$ then

MathematicsFunctions

$text If end text f colon left square bracket 0 comma straight infinity right parenthesis not stretchy rightwards arrow R text defined by end text f left parenthesis x right parenthesis equals x squared comma text then end text f text is end text$

$text If end text f colon left square bracket 0 comma straight infinity right parenthesis not stretchy rightwards arrow R text defined by end text f left parenthesis x right parenthesis equals x squared comma text then end text f text is end text$

MathematicsFunctions

$text If end text f colon R not stretchy rightwards arrow R text is defined by end text f left parenthesis x right parenthesis equals 2 x plus vertical line x vertical line text then end text f left parenthesis 2 x right parenthesis plus f left parenthesis negative x right parenthesis minus f left parenthesis x right parenthesis equals$

$text If end text f colon R not stretchy rightwards arrow R text is defined by end text f left parenthesis x right parenthesis equals 2 x plus vertical line x vertical line text then end text f left parenthesis 2 x right parenthesis plus f left parenthesis negative x right parenthesis minus f left parenthesis x right parenthesis equals$

MathematicsFunctions

parallel

$text If end text f left parenthesis x right parenthesis equals fraction numerator cos squared x plus sin to the power of 4 x over denominator sin squared x plus cos to the power of 4 x end fraction text for x∈R end text$ then f(2002) =

$text If end text f left parenthesis x right parenthesis equals fraction numerator cos squared x plus sin to the power of 4 x over denominator sin squared x plus cos to the power of 4 x end fraction text for x∈R end text$ then f(2002) =

MathematicsFunctions

$text If end text f left parenthesis x right parenthesis equals 4 x minus 1 comma text if end text x greater than 4 comma space space space space space space space space space space space equals x squared minus 2 comma text if end text minus 2 less or equal than x less or equal than 3 comma space space space space space space space space space space space space equals 3 x plus 4 comma text if end text x less than negative 2 comma t h e n space fraction numerator f left parenthesis negative 3 right parenthesis plus f left parenthesis 5 right parenthesis plus f left parenthesis 0 right parenthesis plus f left parenthesis negative 1 right parenthesis over denominator f left parenthesis negative 2 right parenthesis plus f left parenthesis 1 right parenthesis plus f left parenthesis negative 5 right parenthesis plus f left parenthesis 3 right parenthesis end fraction equals$

$text If end text f left parenthesis x right parenthesis equals 4 x minus 1 comma text if end text x greater than 4 comma space space space space space space space space space space space equals x squared minus 2 comma text if end text minus 2 less or equal than x less or equal than 3 comma space space space space space space space space space space space space equals 3 x plus 4 comma text if end text x less than negative 2 comma t h e n space fraction numerator f left parenthesis negative 3 right parenthesis plus f left parenthesis 5 right parenthesis plus f left parenthesis 0 right parenthesis plus f left parenthesis negative 1 right parenthesis over denominator f left parenthesis negative 2 right parenthesis plus f left parenthesis 1 right parenthesis plus f left parenthesis negative 5 right parenthesis plus f left parenthesis 3 right parenthesis end fraction equals$

MathematicsFunctions

The number of functions from {1,2,3,.....20} onto {1,2,3,......,20} such that f(k) is a multiple of 3 whenever K is a multiple of 4 is

The number of functions from {1,2,3,.....20} onto {1,2,3,......,20} such that f(k) is a multiple of 3 whenever K is a multiple of 4 is

MathematicsFunctions

parallel

The number of linear functions which map from $text end text left square bracket negative 1 comma 1 right square bracket text onto end text left square bracket 0 comma 2 right square bracket text is end text$

The number of linear functions which map from $text end text left square bracket negative 1 comma 1 right square bracket text onto end text left square bracket 0 comma 2 right square bracket text is end text$

MathematicsFunctions

Let A and B are two sets such that $A intersection B equals left curly bracket 1 comma 2 right curly bracket comma A union B equals left curly bracket 1 comma 2 comma 3 comma 4 comma 5 right curly bracket text . If end text n subscript 1 comma n subscript 2 text are end text$ maximum and minimum number of functions from A to B respectively, then n₁ - n₂ =

Let A and B are two sets such that $A intersection B equals left curly bracket 1 comma 2 right curly bracket comma A union B equals left curly bracket 1 comma 2 comma 3 comma 4 comma 5 right curly bracket text . If end text n subscript 1 comma n subscript 2 text are end text$ maximum and minimum number of functions from A to B respectively, then n₁ - n₂ =

MathematicsFunctions

If a set A contains 10 elements and a set B contains 20 elements then the number of functions from A into B is

If a set A contains 10 elements and a set B contains 20 elements then the number of functions from A into B is

MathematicsFunctions

parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.