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Mon April 23, 2012 By:

i also have doubts on this question

Expert Reply
Mon April 23, 2012
Dear deepa

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

We have not understood the query that you have posted. We would request you to clarify so that we may answer this to the best of the ability.
 
However, in such type of questions, use the knowledge of complementary angles.
cos (90 - A) = sinA
sin (90 - A) = cosA
cosec (90 - A) = secA
sec (90 - A) = cosecA
tan (90 - A) = cotA
cot (90 - A) = tanA
 
Regards

Topperlearning Team.
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