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NCERT Class XII Mathematics Chapter - - Solutions

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Question : 2 of 271
Marks: +1, -0
cos⁡3x\cos 3x
Solution:  
3 Let I=∫cos⁡3xdxI=\int \cos 3x dx
=sin⁡3x3+C=\frac{\sin 3x}{3}+C
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