${d \over {dx}}\log (\log x)$=

  • A
    ${x \over {\log x}}$
  • B
    ${{\log x} \over x}$
  • C
    ${(x\log x)^{ - 1}}$
  • D
    None of these

Similar Questions

Match List$- I$ with List$- II.$

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Choose the correct answer from the options given below :

  • [JEE MAIN 2021]

For the figure

Given that $\overrightarrow A + \overrightarrow B + \overrightarrow C= 0$ out of three vectors two are equal in magnitude and the magnitude of third vector is $\sqrt 2 $ times that of either of the two having equal magnitude. Then the angles between vectors are given by

If $y = x + {1 \over x}$, then

The vector $\overrightarrow{O A}$ where $O$ is origin is given by $\overrightarrow{O A}=2 \hat{i}+2 \hat{j}$. Now it is rotated by $45^{\circ}$ anticlockwise about $O$. What will be the new vector?