Question

Simplify, using trigonometric tables
$\tan {63}^{\circ }{12}^{\prime }-\cos {12}^{\circ }{42}^{\prime }$

Answer 1

$\tan 63°{12}^{\prime }-\cos 12°{42}^{\prime }$

$=1.9796-0.9755$

$=1.0041$

Hence, the answer is $\mathrm{1.0041.}$