Q81 / 160 · WBJEE 2009 · Mathematics

Angle between $\mathrm{y}^2=\mathrm{x}$ and $\mathrm{x}^2=\mathrm{y}$ at the origin is

  • A
    $2 \tan ^{-1}\left(\frac{3}{4}\right)$
  • B
    $\tan ^{-1}\left(\frac{4}{3}\right)$
  • Correct answer
    C
    $\frac{\pi}{2}$
  • D
    $\frac{\pi}{4}$

Solution

Hins : Angle between axes (since co-ordinate axes are the tangents for the given curve). Figure

Hence, the correct answer is option: 'C'.

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