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Airida [17]
3 years ago
8

∠A and ∠B are complementary angles of right triangle ABC, cos A = 0.83, and cos B = 0.55. What is sin A + sin B?

Mathematics
2 answers:
sergiy2304 [10]3 years ago
4 0
As the angles are complementary sin A = cos B and  sin B = cos A

so sin A + sin B =  0.55 + 0.83 =  1.38
MissTica3 years ago
3 0

Answer:

sin(A)+sin(B)=1.38

Step-by-step explanation:

Let

A, B and 90\° the measures of the angles in a right triangle

we know that

m ------> by complementary angles

so

sin(A)=cos(B)

sin(B)=cos(A)

In this problem we have

cos(A)=0.83

cos(B)=0.55

therefore

sin(A)=0.55

sin(B)=0.83

sin(A)+sin(B)=0.55+0.83=1.38

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