railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
જો sin(x - y) = 1/2 અને cos(x + y) = 1/2, તો sin x cos x + 2sin2x + cos3x sec x ની કિંમત કેટલી છે?
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2
2
√2 + 1
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1
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