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Andrej [43]
2 years ago
14

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]2 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

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

max2010maxim [7]2 years ago
5 0

Answer:A.b=90*

Step-by-step explanation:

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