TS EAMCET · Maths · Definite Integration
\(\frac{3}{25} \int_0^{25 \pi} \sqrt{\left|\cos x-\cos ^3 x\right|} d x=\)
- A -8
- B 4
- C 1
- D 0
Answer & Solution
Correct Answer
(B) 4
Step-by-step Solution
Detailed explanation
\(\mathrm{I}=\frac{3}{25} \int_0^{25 \pi} \sqrt{\left|\cos x-\cos ^3 x\right|} d x\)[Period = \(\pi\)] \(=\frac{3}{25} \times 25 \int_0^\pi \sqrt{\left|\cos x-\cos ^3 x\right|} d x\)…
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