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JEE Mains · Maths · STD 12 - 7.2 definite integral

સંકલિત \(\int_{-\pi/4}^{\pi/4}\left(\dfrac{32\cos^4 x}{1 + e^{\sin x}}\right)dx\) નું મૂલ્ય છે:

  1. A \(4\pi + 2\)
  2. B \(3\pi + 8\)
  3. C \(3\pi + 4\)
  4. D \(4\pi + 3\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(3\pi + 8\)

Step-by-step Solution

Detailed explanation

ધારો કે \(I = \int_{-\pi/4}^{\pi/4} \dfrac{32\cos^4 x}{1 + e^{\sin x}} dx\) નિશ્ચિત સંકલનના ગુણધર્મ \(\int_{-a}^{a} f(x) dx = \int_{0}^{a} (f(x) + f(-x)) dx\) નો ઉપયોગ કરતા, આપણને મળે છે:…
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