MCQOPTIONS
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| 1. |
If \[y={{\tan }^{-1}}\left( \frac{{{x}^{1/3}}+{{a}^{1/3}}}{1-{{x}^{1/3}}{{a}^{1/3}}} \right)\], then \[\frac{dy}{dx}=\] [DSSE 1986] |
| A. | \[\frac{1}{3{{x}^{2/3}}(1+{{x}^{2/3}})}\] |
| B. | \[\frac{1}{3{{x}^{2/3}}(1+{{x}^{2/3}})}\] |
| C. | \[-\frac{1}{3{{x}^{2/3}}(1+{{x}^{2/3}})}\] |
| D. | \[-\frac{a}{3{{x}^{2/3}}(1+{{x}^{2/3}})}\] |
| Answer» B. \[\frac{1}{3{{x}^{2/3}}(1+{{x}^{2/3}})}\] | |