stuartemma31 stuartemma31

29-07-2021
Mathematics

contestada

in a right triangle ABC, C is the right angle. What does cos A equal
1: cos(B)
2: both A and C
3: Cos(90-A)
4: sin(90-A)

Respuesta :

sijalmaurati96 sijalmaurati96

30-07-2021

Answer:

4

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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