MCQ · কৃষি গুচ্ছ সমন্বিত ভর্তি পরীক্ষা · ২০২৩
∫₀^(π/2) cos⁵x sin x dx এর মান:
- ক1/3
- খ1/6
- গ-1/6
- ঘ1/2
সঠিক উত্তর: খ) 1/6
ব্যাখ্যা
cos x = t বসিয়ে ∫₀¹ t⁵ dt = 1/6।
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