engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If \(\rm \frac{{\sin \,x}}{{\sin \,y}}\, = \,p\) and \(\rm \frac{{\cos \,x}}{{\cos \,y}}\, = \,q\), then tanx = ?
1
\(\rm \frac{p}{q}\sqrt {\frac{{{q^2}\, - \,2}}{{1\, - \,{p^2}}}} \)
2
\(\rm \frac{p}{q}\sqrt {\frac{{{q^2}\, - \,1}}{{1\, - \,{p^2}}}}\)
3
\(\rm \frac{p}{q}\sqrt {\frac{{1\, - \,{q^2}}}{{1\, + \,{p^2}}}} \)
4
\(\rm \frac{p}{q}\sqrt {\frac{{{q^2}\, - \,1}}{{1\, + \,{p^2}}}}\)