If g(x) = 1 + x and fg (x) = 3 + 2 x + x , then f(x)= - Vidyadip

MCQ

If $ \text{g}(\text{x}) = 1 +\sqrt{\text{x}}$ and $ \text{fg} (\text{x}) = 3 + 2\sqrt{\text{x} +\text{ x}},$ then $\text{f}(\text{x})=$

A
1 + 2x2
B
2 + x2
C
1 + x
D
2 + x

✓

Answer

2 + x²

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