Question

cos=(_)
a. (e,r/x):cos0=r:x
b. (e,x/r):cos0=x/r
c. (e,r/y):cos0=r/y
d. (e,y/r):cos0=y/r

Answer 1

Answer:

B choice

Step-by-step explanation:

Assume that you mean the definition of cos.

See attachment for visual; we know that cos is base or adjacent to hypotenuse.

x is horizontal; y is vertical; r is radius/hypotenuse

Since cos is base to hypotenuse; therefore:-

cos = x/r