Evaluate _ 0 ^ 5 (2+3 x^ 2 ) 3 x d x .
Mathematics · JEE Main · NTA Exams — Integral Calculus
Evaluate \[\int_{0}^{\frac{\pi}{5}}\left(2+3 x^{2}\right) \cos 3 x d x\].
- \(\frac{\pi^{2}}{36}+\frac{2}{9}\)
- \(\frac{\pi^{2}}{16}+\frac{1}{19}\)
- \(\frac{\pi^{2}}{36}+\frac{4}{9}\)
- None of these
Answer
(A) ^ 2 36 + 2 9
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