railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Find the value of \(\frac{\operatorname{Cos}^2 25^{\circ}-\operatorname{Sin}^2 65^{\circ}}{\operatorname{Cos}^2 25^{\circ}+\operatorname{Sin}^2 65^{\circ}}\) :
1
\(\frac{1}{2}\)
2
1
3
-1
4
0