1.22. If 0 and b?
A. b = 90° - a
B. b = 90° + a
C. b = 180° – a
D. b = 180° + a

Option A. b = 90° - a

Step-by-step 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

isolate the angle b

good luck!

cutie~

no

step-by-step explanation:

answer