Question

3) Which of the following statement is true?
A) sine=cos (90-0)
B) cose = tan (90-0)
C) sino = tan (90-0)
D) tane= tan (90-0)​

Answer 1

Answer:

A) sine = cos(90-0)

Step-by-step explanation:

$\cos(90 - \theta)$

As it lies in the first quadrant the sign will be +ve

and due to 90° cos changes to sine

Therefore,

sine=cos(90-0)