i also have doubts on this question

Asked by  | 23rd Apr, 2012, 11:35: AM

Expert Answer:

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

Topperlearning Team.

Answered by  | 23rd Apr, 2012, 12:02: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.