railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Circular Measure of Angles
Find the value of \(\frac{{1{\rm{\;}} - {\rm{\;ta}}{{\rm{n}}^2}7\frac{1}{{2{\rm{\;}}}}{\rm{}}^\circ }}{{1{\rm{\;}} + {\rm{\;ta}}{{\rm{n}}^2}7\frac{1}{2}^\circ {\rm{\;\;}}}}\) ?
1
(√3 - 1)/3√3
2
(√3 + 1)/3√3
3
(√3 - 1)/2√2
4
(√3 + 1)/2√2