Let f : R → R, g : R → R be two functions such that f(= 2x – 3, g(= x3 + 5. The function (fog)-1 (is equal to
A. \(\left(\frac{x+7}{2}\right)^{1 / 3}\)
B. \(\left(x-\frac{7}{2}\right)^{1 / 3}\)
C. \(\left(\frac{x-2}{7}\right)^{1 / 3}\)
D. \(\left(\frac{x-7}{2}\right)^{1 / 3}\)
Answer:D
Let f : R → R, g : R → R be two functions such that f(= 2x – 3, g(= x3 + 5. The function (fog)-1 (is equal to
A. \(\left(\frac{x+7}{2}\right)^{1 / 3}\) B. \(\left(x-\frac{7}{2}\right)^{1 / 3}\) C. \(\left(\frac{x-2}{7}\right)^{1 / 3}\) D. \(\left(\frac{x-7}{2}\right)^{1 / 3}\)