1.If the function f:[72,∞)→[−94,∞)f : \left[\frac{7}{2}, \infty\right) \to \left[-\frac{9}{4}, \infty\right)f:[27,∞)→[−49,∞) be defined by f(x)=x2−7x+10f(x) = x^2 - 7x + 10f(x)=x2−7x+10, then f−1(x)f^{-1}(x)f−1(x) isa.7+9+4x2\frac{7 + \sqrt{9 + 4x}}{2}27+9+4xb.7±9+4x2\frac{7 \pm \sqrt{9 + 4x}}{2}27±9+4xc.7+9−4x2\frac{7 + \sqrt{9 - 4x}}{2}27+9−4xd.7±9−4x2\frac{7 \pm \sqrt{9 - 4x}}{2}27±9−4xLogin to continueOnly logged in users canattempt or see the solution.
