MCQOPTIONS
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MCQOPTIONS
| 1. |
Find ( frac{d^2y}{dx^2} ), if y=tan2 x+3 tan x. |
| A. | sec<sup>2</sup> u2061 u2061x tan u2061x (2 tan u2061x+sec u2061x+3) |
| B. | 2 sec<sup>2</sup> u2061 u2061x tan u2061x (2 tan u2061x-sec u2061x+3) |
| C. | 2 sec<sup>2</sup> u2061 u2061x tan u2061x (2 tan u2061x+sec u2061x+3) |
| D. | 2 sec<sup>2</sup> u2061 u2061x tan u2061x (2 tan u2061x+sec u2061x-3) |
| Answer» D. 2 sec<sup>2</sup> u2061 u2061x tan u2061x (2 tan u2061x+sec u2061x-3) | |