Answer:
45 degrees
Step-by-step explanation:
sin(x) = cos(x)
Divide each side by cos x
sinx/cos x = cos x/cos x
tan x = 1
Take the arctan of each side
arctan (tan x) = arctan (1)
x = 45 degrees + 360 n
x= 225+ 360 n
where n is an integer
We only have to choose 1 since it says choose an angle