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If f(x)= _e ( 1+x 1-x ), g(x)= 3 x+x^3 1+3 x^2 and g f(t)=g(f(t)) , then what is g f ( e-1 e+1 ) equal to?

Options

  1. A2
  2. B1
  3. C0
  4. D1 2

Correct answer

B. 1

Step-by-step solution

The correct answer is option (B).

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