Question

(07.01 MC)

Answer 1

I choose A. 0, because the angles are complementary

Answer 2

Answer:  Option 'a' is correct.

Step-by-step explanation:

Since we have given that

$\cos 90^\circ=0$

As we know that

Sine function and Cosine function are complementary.

So, it becomes ,

$\cos(90^\circ-90^\circ)=0\\\\\implies \sin 0^\circ=0$

Hence, Option 'a' is correct i.e. a. 0, because the angles are complementary.