3 years ago

In a right triangle ABC, C is the right angle. What does cos A equal

Mathematics

2 answers:

ipn [44]3 years ago

7 0

Answer:

Step-by-step explanation:

A+B+C = 180

C = 90

A+B = 90

A=90-B

Cos (A) = Sin(90-A)

Alecsey [184]3 years ago

3 0

Answer:

Step-by-step explanation:

A+B+C=180, C=90. A+B=90. A=90-B. Cos(A) = sin(90-A)

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