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Question: If f(x) = \(2x^{2} - 1\) then \((2x - 1)^{2}\) f(x) is –...

If f(x) = 2x2−12x^{2} - 1 then (2x−1)2(2x - 1)^{2} f(x) is –

A

e–4

B

e3

C

e2

D

e4

Answer

e4

Explanation

Solution

⇒ (x2+5x+3x2+x+2)x\left( \frac { x ^ { 2 } + 5 x + 3 } { x ^ { 2 } + x + 2 } \right) ^ { x }⇒ 1∞ form

Using f9 = e9(f – 1)

⇒  x. [x2+5x+3x2+x+2−1]\left[ \frac { x ^ { 2 } + 5 x + 3 } { x ^ { 2 } + x + 2 } - 1 \right] =

⇒ = e4