MCQOPTIONS
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| 1. |
\[\int_{{}}^{{}}{(3\,\text{cose}{{\text{c}}^{2}}x+2\sin 3x)\ dx=}\] [AI CBSE 1981] |
| A. | \[3\cot x+\frac{2}{3}\cos 3x+c\] |
| B. | \[-\left( 3\cot x+\frac{2}{3}\cos 3x \right)+c\] |
| C. | \[3\cot x-\frac{2}{3}\cos 3x+c\] |
| D. | None of these |
| Answer» C. \[3\cot x-\frac{2}{3}\cos 3x+c\] | |