Question

On what interval is the solution tanx valid?

A) (0, π/2)
B) (-π/2, π/2)
C) (π/4, 3π/4)
D) (0, π)

Answer 1

The solution tanx is valid on the interval (0, π/2).

Step-by-step explanation:

The correct answer is A) (0, π/2).

The tangent function is defined for all real numbers except when the cosine function is equal to zero. Since the cosine function is equal to zero at x = π/2, the solution tanx is not valid at this point. Therefore, the interval where the solution tanx is valid is (0, π/2).