Question

100 pointsssssss Pre-calculus

Answer 1

Answer: x = pi

Explanation:

tan(x + pi) = tan(x)

cos(x + pi/2) = -sin(x).

Replacing those things in the equation, you get

tan(x) + sin(x) = 0

tan(x) = -sin(x)

(sin(x)/cos(x)) * (1/sin(x)) = -1

-1/cos(x) = 1

cos(x) = -1

x = pi