1.The domain of the function f(x)=4cos−1(1−∣x∣2)f(x) = 4 \sqrt{\cos^{-1} \left( \frac{1 - |x|}{2} \right)}f(x)=4cos−1(21−∣x∣) isa.(−∞,−3)∪(3,∞)(-\infty, -3) \cup (3, \infty)(−∞,−3)∪(3,∞)b.[−3,3][-3, 3][−3,3]c.(−∞,−3]∪[3,∞)(-\infty, -3] \cup [3, \infty)(−∞,−3]∪[3,∞)d.ϕ\phiϕLogin to continueOnly logged in users canattempt or see the solution.
