MCQ
$\frac{{\cos 12^\circ - \sin 12^\circ }}{{\cos 12^\circ + \sin 12^\circ }} + \frac{{\sin 147^\circ }}{{\cos 147^\circ }} = $
- A$1$
- B$-1$
- ✓$0$
- DNone of these
$ = \frac{{1 - \tan \,\,{{12}^o}}}{{1 + \tan \,\,{{12}^o}}} + \tan \,\,{147^o}$
$ = \tan \,\,{33^o} - \tan \,\,{33^o} = 0$.
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$(S1)$ : If $P ( A )=0$, then $A =\phi$
$( S 2)$ : If $P ( A )=$, then $A =\Omega$
Then