The number ${\log _2}7$ is

  • [IIT 1990]
  • A

    An integer

  • B

    A rational number

  • C

    An irrational number

  • D

    A prime number

Similar Questions

If ${\log _e}\left( {{{a + b} \over 2}} \right) = {1 \over 2}({\log _e}a + {\log _e}b)$, then relation between $a$ and $b$ will be

If ${\log _{1/\sqrt 2 }}\sin x > 0,x \in [0,\,\,4\pi ],$ then the number of values of $x$ which are integral multiples of ${\pi \over 4},$ is

${\log _4}18$ is

The number of solution $(s)$ of the equation $log_7(2^x -1) + log_7(2^x -7) = 1$, is -

If ${\log _7}2 = m,$ then ${\log _{49}}28$ is equal to