railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Trigonometry Circular Measure of Angles
\({\sec^2 54^{\circ}-\cot^236^{\circ} \over {\ cosec^2 57^{\circ}-\tan^233^{\circ}}} + 2\sin^258^{\circ}.\sec^232^{\circ}-\sin^245^{\circ}\) का मान ज्ञात कीजिए।
1
\(1 \over \sqrt2\)
2
\(2 \over 3\)
3
\(5 \over 2\)
4
\(1 \over 2\)