The function is defined on the set

MATHEMATICS · Single correct · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

The function f(x)=cot⁡−1(x+3)x+cos⁡−1x2+3x+1f(x) = \cot^{-1}\sqrt{(x+3)x} + \cos^{-1}\sqrt{x^2+3x+1} is defined on the set SS, where SS is equal to: (a) {0,3}\{0, 3\} (b) (0,3)(0, 3) (c) {0,−3}\{0, -3\} (d) [−3,0][-3, 0]

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