MCQOPTIONS
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| 1. |
If \[3\sin (xy)+4\cos (xy)=5\], then \[\frac{dy}{dx}=\] [EAMCET 1994] |
| A. | \[-\frac{y}{x}\] |
| B. | \[\frac{3\sin (xy)+4\cos (xy)}{3\cos (xy)-4\sin (xy)}\] |
| C. | \[\frac{3\cos (xy)+4\sin (xy)}{4\cos (xy)-3\sin (xy)}\] |
| D. | None of these |
| Answer» B. \[\frac{3\sin (xy)+4\cos (xy)}{3\cos (xy)-4\sin (xy)}\] | |