differentiation

Related Questions

• If $y=\sin x\sin 3x,$then ${{y}_{n}}=$

  ---

• The maximum height is reached in 5 seconds by a stone thrown vertically upwards and moving under the equation $10s = 10ut – 49{t}^{2}$, where s is in metre and t is in second. The value of u is

  ---

• If $y = {\cot ^{ - 1}}\left[ {\frac{{\sqrt {1 + \sin x} + \sqrt {1 - \sin x} }}{{\sqrt {1 + \sin x} - \sqrt {1 - \sin x} }}} \right]$, then $\frac{{dy}}{{dx}} = $

  ---

• If $z=\frac{{{({{x}^{4}}+{{y}^{4}})}^{1/3}}}{{{({{x}^{3}}+{{y}^{3}})}^{1/4}}}$, then $x\frac{\partial z}{\partial x}+y\frac{\partial z}{\partial y}=$

  ---

• A curve is given by the equations $x=a\cos \theta +\frac{1}{2}b\cos 2\theta ,$ $y=a\sin \theta +\frac{1}{2}b\,\sin \,2\theta $, then the points for which $\frac{{{d}^{2}}y}{d{{x}^{2}}}=0,$ is given by

  ---