Question

HELP AND EXPLAIN!!! In right △ABC, B is a right angle and sin C = x .
cos A =

answer options -
A. square root of 1 - x^2
B. x^2
C. square root of x^2 + 1
D. x

Answer 1

Answer:

D . X is the answer

AC denotes the length of the hypotenuse and AB and BC denote the lengths of the other two sides,

$\cos( < a) = \frac{ab}{ac} = \sin( < c) = x$