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3 years ago

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

Mathematics

2 answers:

Kobotan [32]3 years ago

7 0

Answer:

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

sin(a)=cos(b)

then

angle a and angle b are complementary

$a+b=90^o$

isolate the angle b

$b=90^o-a$

max2010maxim [7]3 years ago

5 0

Answer:A.b=90*

Step-by-step explanation:

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