Question

1.22. If 0 and b?

A. b = 90° - a
B. b = 90° + a
C. b = 180° – a
D. b = 180° + a

Answer 1

Answer:A.b=90*

Explanation:

Answer 2

Option A. b = 90° - a

Explanation:

we know that

If two angles are complementary, the cofunction identities state that the sine of one equals the cosine of the other and vice versa

so

If

sin(a)=cos(b)

then

angle a and angle b are complementary

`a+b=90^o`

isolate the angle b

`b=90^o-a`