If $y = 1 + x + {{{x^2}} \over {2\,!}} + {{{x^3}} \over {3\,!}} + ..... + {{{x^n}} \over {n\,!}}$, then ${{dy} \over {dx}} = $

  • A
    y
  • B
    $y + {{{x^n}} \over {n!}}$
  • C
    $y - {{{x^n}} \over {n!}}$
  • D
    $y - 1 - {{{x^n}} \over {n!}}$

Similar Questions

At what angle must the two forces $(x + y)$ and $(x -y)$ act so that the resultant may be $\sqrt {({x^2} + {y^2})} $

A body moves due East with velocity $20\, km/hour$ and then due North with velocity $15 \,km/hour$. The resultant velocity..........$km/hour$

The magnitude of a given vector with end points $ (4, -4, 0)$ and $(-2, -2, 0)$ must be

A body is at rest under the action of three forces, two of which are ${\vec F_1} = 4\hat i,\,{\vec F_2} = 6\hat j,$ the third force is

For the figure