railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि sin(x - y) = 1/2 और cos(x + y) = 1/2 है, तब sin x cos x + 2sin2x + cos3x sec x का मान क्या होगा?
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2
2
√2 + 1
3
1
4
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