Maths-
General
Easy
Question
Fundamental Algebra:
1. Add:
(ii) –7y2 + 8y + 2 ; 3y2 – 7y + 1
Hint:
The concept used in this question is the addition of polynomials.
○ Arrange the term in the decreasing order of their power.
○ To add polynomials simply add any like terms together.
○ Like terms are terms whose variables and exponents are the same.
The correct answer is: – 4y2 + y + 3
○
- Step by step explanation:
○ Given:
Expression: –7y2 + 8y + 2 ;
3y2 – 7y + 1 ;
○ Step 1:
○ Simplify the expression.
(–7y2 + 8y + 2 ) + ( 3y2 – 7y + 1 )
(–7y2 + 8y + 2 ) + ( 3y2 – 7y + 1 )
○ Step 2:
○ Group the like terms.
( –7y2. + 3y2 ) + ( 8y - 7y ) + ( 2 + 1 )
○ Step 3:
○ Add like terms,
– 4y2 + y + 3
- Final Answer:
– 4y2 + y + 3
(–7y2 + 8y + 2 ) + ( 3y2 – 7y + 1 )○ Step 2:
○ Group the like terms.
( –7y2. + 3y2 ) + ( 8y - 7y ) + ( 2 + 1 )○ Step 3:
○ Add like terms,
– 4y2 + y + 3Related Questions to study
Maths-
A regular polygon has 9 diagonals. Find the number of sides and classify it based on the number of sides.
A regular polygon has 9 diagonals. Find the number of sides and classify it based on the number of sides.
Maths-General
Maths-
Find the GCF (GCD) of the given pair of monomials.
Find the GCF (GCD) of the given pair of monomials.
Maths-General
Maths-
A regular polygon has 20 diagonals. Find the number of sides and classify it based on the number of sides.
A regular polygon has 20 diagonals. Find the number of sides and classify it based on the number of sides.
Maths-General
Maths-
A = {1, 2, 3, 5} and B = {4, 6, 9}. Define a relation R from A to B by R = {(x, y): the difference between x and y is odd; x ∈ A, y ∈ B}. Write R in roster form.
A = {1, 2, 3, 5} and B = {4, 6, 9}. Define a relation R from A to B by R = {(x, y): the difference between x and y is odd; x ∈ A, y ∈ B}. Write R in roster form.
Maths-General
Maths-
Which of the following relations are functions? Give reasons.
(i) {(2,1), (5,1), (8,1), (11,1), (14,1), (17,1)}
(ii) {(2,1), (4,2), (6,3), (8,4), (10,5), (12,6), (14,7)}
Note: All functions are relations but all relations are not functions.
Which of the following relations are functions? Give reasons.
(i) {(2,1), (5,1), (8,1), (11,1), (14,1), (17,1)}
(ii) {(2,1), (4,2), (6,3), (8,4), (10,5), (12,6), (14,7)}
Maths-General
Note: All functions are relations but all relations are not functions.
Maths-
Find the GCF (GCD) of the given pair of monomials.
Find the GCF (GCD) of the given pair of monomials.
Maths-General
Maths-
A square has lines of symmetry
A square has lines of symmetry
Maths-General
Maths-
Let R be a relation from N-N defined by R= { (a,b) : a, b belong to N and a= b2 }.Are the following true ?
a) (a,a) ∈R , for all a ∈N
b) (a,b) ∈R implies (b,a) ∈R
c) (a,b) ∈R , (b,c) ∈R implies (a,c) ∈R
Justify your answer in each case.
Let R be a relation from N-N defined by R= { (a,b) : a, b belong to N and a= b2 }.Are the following true ?
a) (a,a) ∈R , for all a ∈N
b) (a,b) ∈R implies (b,a) ∈R
c) (a,b) ∈R , (b,c) ∈R implies (a,c) ∈R
Justify your answer in each case.
Maths-General
Maths-
Fundamental Algebra:
1. Add:
(i) x2 – y2 – 1 ; y2 – 1 – x2 ; 1 – x2 – y2
Fundamental Algebra:
1. Add:
(i) x2 – y2 – 1 ; y2 – 1 – x2 ; 1 – x2 – y2
Maths-General
Maths-
Draw and find the number of lines of symmetry for the given regular pentagon.
Draw and find the number of lines of symmetry for the given regular pentagon.
Maths-General
Maths-
Find the number of lines of symmetry for a regular heptagon.
Find the number of lines of symmetry for a regular heptagon.
Maths-General
Maths-
If A is a relation on a set R , then which one of the following is correct ?
If A is a relation on a set R , then which one of the following is correct ?
Maths-General
Maths-
Let A and B two sets such that n( AxB)= 6 . If three elements of AXB are ( 3,2)(7,5)(8,5), then
Let A and B two sets such that n( AxB)= 6 . If three elements of AXB are ( 3,2)(7,5)(8,5), then
Maths-General
Maths-
Find the number of diagonals of a 50-gon
Find the number of diagonals of a 50-gon
Maths-General
Maths-
Find the GCF (GCD) of the given pair of monomials.
Find the GCF (GCD) of the given pair of monomials.
Maths-General
