Question

In △ABC, ∠C is a right angle and sinB=725.

What is the value of cosA?
A
725

B
1725

C
1825

D
2425 giving brainliest to whoever answers correctly

Answer 1

9514 1404 393

Answer:

  A  7/25

Step-by-step explanation:

The cosine of an angle is equal to the sine of its complement. In a right triangle, angle A is the complement of angle B. So, ...

  cos(A) = sin(B)

  cos(A) = 7/25