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AP EAMCET · Maths · Definite Integration

\(\int_{-1}^1\left(\sqrt{1+x+x^2}-\sqrt{1-x+x^2}\right) d x=\)

  1. A 2
  2. B 4
  3. C 0
  4. D 8
Verified Solution

Answer & Solution

Correct Answer

(C) 0

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \text { } \int_{-a}^a f(x) d x=\int_0^a[f(x)+f(-x)] d x \\ & =\int_0^1\left(\sqrt{1+x+x^2}-\sqrt{1-x+x^2}\right) d x \\ & +\int_0^1\left(\sqrt{1-x+x^2}-\sqrt{1+x+x^2}\right) d x=\int_0^1 0 \cdot d x=0 .\end{aligned}\)