The domain of the function (f(x) = (x^2-2x-63)^{\frac{3}{2}}... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

The domain of the function $f(x) = (x^2-2x-63)^{\frac{3}{2}}$ , x ∈ R is

A

(-∞, -6]∪[9,∞)

B

(-∞, -9]∪[7,∞)

C

(-∞, -7]∪[7,∞)

D

(-∞, -5]∪[9,∞)

E

(-∞, -7]∪[9,∞)

Answer

(-∞, -7]∪[9,∞)

Explanation

Solution

The correct option is (E) : (-∞, -7]∪[9,∞)