MCQOPTIONS
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| 1. |
If f: R → R, g: R → R be two functions given by f(x) = 2x – 3 and g(x) = x3 + 5, then (fog)-1(x) is equal to |
| A. | \({\left( {\frac{{{\rm{x}} + 7}}{2}} \right)^{\frac{1}{3}}}\) |
| B. | \({\left( {\frac{{{\rm{x}} - 7}}{2}} \right)^{\frac{1}{3}}}\) |
| C. | \({\left( {{\rm{x}} - \frac{7}{2}} \right)^{\frac{1}{3}}}\) |
| D. | \({\left( {{\rm{x}} + \frac{7}{2}} \right)^{\frac{1}{3}}}\) |
| Answer» C. \({\left( {{\rm{x}} - \frac{7}{2}} \right)^{\frac{1}{3}}}\) | |