railway RRB Technician Grade 1 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\(\frac{\cos ^2 32^{\circ}+\cos ^2 58^{\circ}}{\sec ^2 50^{\circ}-\cot ^2 40^{\circ}}\) + 4 टॅन 13° टॅन 37° टॅन 53° टॅन 77° ?
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