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Chapter 7 Class 12 Integrals
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Ex 7.1, 2 - Integrate cos 3x - Chapter 7 Class 12 CBSE - Ex 7.1

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Ex 7.1, 2 Find anti derivative of cos⁑3π‘₯ We know that γ€– (sin⁑3π‘₯ )γ€—^β€²=3 cos⁑3π‘₯ 1/3 (sin⁑3π‘₯ )^β€²=cos⁑3π‘₯ cos⁑3π‘₯=1/3 (sin⁑3π‘₯ )^β€² cos⁑3π‘₯=(1/3 sin⁑3π‘₯ )^β€² ∴ Antiderivate of π‘π‘œπ‘ β‘3π‘₯=𝟏/πŸ‘ π’”π’Šπ’β‘πŸ‘π’™

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