MCQOPTIONS
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| 1. |
If \[y={{\tan }^{-1}}\frac{4x}{1+5{{x}^{2}}}+{{\tan }^{-1}}\frac{2+3x}{3-2x}\], then \[\frac{dy}{dx}=\] |
| A. | \[\frac{1}{1+25{{x}^{2}}}+\frac{2}{1+{{x}^{2}}}\] |
| B. | \[\frac{5}{1+25{{x}^{2}}}+\frac{2}{1+{{x}^{2}}}\] |
| C. | \[\frac{5}{1+25{{x}^{2}}}\] |
| D. | \[\frac{1}{1+25{{x}^{2}}}\] |
| Answer» D. \[\frac{1}{1+25{{x}^{2}}}\] | |