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Question

$text If end text cos text end text straight A equals negative 3 over 5 comma sin space straight B equals 7 over 25 text and end text 90 to the power of ring operator less than straight A less than 180 to the power of ring operator comma 0 to the power of ring operator less than straight B less than 90 to the power of ring operator text then end text tan text end text left parenthesis straight A plus straight B right parenthesis equals$

$3 / 4$
$- 3 / 4$
$3 / 5$
$- 3 / 5$

The correct answer is: $negative 3 divided by 4$

$tan space left parenthesis A plus B right parenthesis equals fraction numerator fraction numerator negative 4 over denominator 3 end fraction plus 7 over 24 over denominator 1 plus 4 over 3 7 over 24 end fraction equals fraction numerator negative 3 over denominator 4 end fraction$

Related Questions to study

$text If end text cos text end text alpha equals negative 12 over 13 comma cot space beta equals 24 over 7 comma 90 to the power of ring operator less than alpha less than 180 to the power of ring operator$ and $180 to the power of ring operator less than straight beta less than 270 to the power of ring operator$ then the quadrant in which $alpha plus beta$ lies

$text If end text cos text end text alpha equals negative 12 over 13 comma cot space beta equals 24 over 7 comma 90 to the power of ring operator less than alpha less than 180 to the power of ring operator$ and $180 to the power of ring operator less than straight beta less than 270 to the power of ring operator$ then the quadrant in which $alpha plus beta$ lies

$text If end text tan text end text straight A equals 17 over 18 comma tan space straight B equals 1 over 35 text then end text cos text end text left parenthesis straight A plus straight B right parenthesis equals$

$text If end text tan text end text straight A equals 17 over 18 comma tan space straight B equals 1 over 35 text then end text cos text end text left parenthesis straight A plus straight B right parenthesis equals$

$text If end text straight A comma straight B text are acute angles, end text sin space straight A equals 4 over 5 comma tan invisible function application straight B equals 5 over 12 text then end text sin text end text left parenthesis straight A plus straight B right parenthesis equals$

$text If end text straight A comma straight B text are acute angles, end text sin space straight A equals 4 over 5 comma tan invisible function application straight B equals 5 over 12 text then end text sin text end text left parenthesis straight A plus straight B right parenthesis equals$

parallel

$text In a end text straight triangle ABC comma straight A text is obtuse, end text sin invisible function application straight A equals 3 over 5 comma sin space straight B equals 5 over 13$ then sin c=

$text In a end text straight triangle ABC comma straight A text is obtuse, end text sin invisible function application straight A equals 3 over 5 comma sin space straight B equals 5 over 13$ then sin c=

$text If end text sin text end text straight A equals fraction numerator 1 over denominator square root of 2 straight pi end root end fraction comma sin space straight B equals fraction numerator 1 over denominator square root of 5 end fraction comma 0 less than straight A comma straight B less than straight pi over 4 text then end text straight A plus straight B equals$

$text If end text sin text end text straight A equals fraction numerator 1 over denominator square root of 2 straight pi end root end fraction comma sin space straight B equals fraction numerator 1 over denominator square root of 5 end fraction comma 0 less than straight A comma straight B less than straight pi over 4 text then end text straight A plus straight B equals$

$text If end text tan text end text straight A equals fraction numerator sin begin display style space end style straight B over denominator 1 minus xcos space straight B end fraction text and end text tan text end text straight B equals fraction numerator ysin space straight A over denominator 1 minus ycos space straight A end fraction text then end text fraction numerator sin begin display style text end text end style straight A over denominator sin begin display style text end text end style straight B end fraction equals$

$text If end text tan text end text straight A equals fraction numerator sin begin display style space end style straight B over denominator 1 minus xcos space straight B end fraction text and end text tan text end text straight B equals fraction numerator ysin space straight A over denominator 1 minus ycos space straight A end fraction text then end text fraction numerator sin begin display style text end text end style straight A over denominator sin begin display style text end text end style straight B end fraction equals$

parallel

$fraction numerator cos space x over denominator cos space left parenthesis x minus 2 y right parenthesis end fraction equals lambda not stretchy rightwards double arrow tan space left parenthesis x minus y right parenthesis tan space y equals$

$fraction numerator cos space x over denominator cos space left parenthesis x minus 2 y right parenthesis end fraction equals lambda not stretchy rightwards double arrow tan space left parenthesis x minus y right parenthesis tan space y equals$

In a $ΔABC$ , if $cos space Acos space Bcos space straight C equals 1 divided by 3$ , then the value of tan A tan B +tan B tan C +tan C tan A is

In a $ΔABC$ , if $cos space Acos space Bcos space straight C equals 1 divided by 3$ , then the value of tan A tan B +tan B tan C +tan C tan A is

$Error converting from MathML to accessible text.$

$Error converting from MathML to accessible text.$

parallel

$text If end text x squared plus y squared plus z squared equals r squared$ and $tan space straight alpha equals xy over straight x comma tan space straight beta equals straight y over xs comma tan space straight gamma equals xe over straight y$ then $straight alpha plus straight beta plus straight gamma equals$

$text If end text x squared plus y squared plus z squared equals r squared$ and $tan space straight alpha equals xy over straight x comma tan space straight beta equals straight y over xs comma tan space straight gamma equals xe over straight y$ then $straight alpha plus straight beta plus straight gamma equals$

$text If end text straight A plus straight B plus straight C equals straight pi over 2 text then end text sum fraction numerator cos begin display style text end text end style left parenthesis straight B plus straight C right parenthesis over denominator cos begin display style text end text end style Bcos space straight C end fraction equals$

$text If end text straight A plus straight B plus straight C equals straight pi over 2 text then end text sum fraction numerator cos begin display style text end text end style left parenthesis straight B plus straight C right parenthesis over denominator cos begin display style text end text end style Bcos space straight C end fraction equals$

$text In a end text straight triangle ABC text if end text tan text end text straight B equals fraction numerator 2 sin space Asin space straight C over denominator sin begin display style space end style left parenthesis straight A plus straight C right parenthesis end fraction text then end text tan space straight A comma tan space straight B comma tan space straight C text are in end text$

$text In a end text straight triangle ABC text if end text tan text end text straight B equals fraction numerator 2 sin space Asin space straight C over denominator sin begin display style space end style left parenthesis straight A plus straight C right parenthesis end fraction text then end text tan space straight A comma tan space straight B comma tan space straight C text are in end text$

parallel

in a $straight triangle P Q R comma open square brackets straight real numbers equals pi over 2 text if end text tan text end text open parentheses P over 2 close parentheses close$ and $tan space open parentheses straight Q over 2 close parentheses$ are the roots of the equation $a x squared plus b x plus c equals 0 left parenthesis a not equal to 0 right parenthesis$ then

in a $straight triangle P Q R comma open square brackets straight real numbers equals pi over 2 text if end text tan text end text open parentheses P over 2 close parentheses close$ and $tan space open parentheses straight Q over 2 close parentheses$ are the roots of the equation $a x squared plus b x plus c equals 0 left parenthesis a not equal to 0 right parenthesis$ then

The value of $sin open parentheses a over 2 close parentheses open curly brackets 1 half plus sum from k equals 1 to n of cos left parenthesis k a right parenthesis close curly brackets$ is equal to

The value of $sin open parentheses a over 2 close parentheses open curly brackets 1 half plus sum from k equals 1 to n of cos left parenthesis k a right parenthesis close curly brackets$ is equal to

The equation $2 sin x over 2 cos squared x minus 2 sin x over 2 sin squared x equals cos squared x minus sin squared x$ has a root for which the false statement is

The equation $2 sin x over 2 cos squared x minus 2 sin x over 2 sin squared x equals cos squared x minus sin squared x$ has a root for which the false statement is

parallel

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