MCQ
$\cos ^{-1} \frac{4}{5}-\cos ^{-1} \frac{60}{61}=$
  • $\cos ^{-1} \frac{273}{305}$
  • B
    $\cos ^{-1} \frac{240}{305}$
  • C
    $\frac{\pi}{2}$
  • D
    $\cos ^{-1} \frac{57}{305}$

Answer

Correct option: A.
$\cos ^{-1} \frac{273}{305}$
A

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