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CUET
General Test
Quantitative Reasoning
Trigonometry
If cosec2θ = 2 cosecθ - 1 . Then find the value of sinθ .
-1
2
0
1
cosec2θ = 2 cosecθ - 1
cosecθ = 2 - \(\frac{1}{coseθ}\)
cosecθ + \(\frac{1}{cosecθ}\) = 2
cosecθ = 1, then θ = 90°
sinθ = sin90° = 1