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CUET
General Test
Quantitative Reasoning
Trigonometry
If cosec2 x - 2 = 0, then the value of x (0 < x < 90°) is :
15°
45°
30°
60°
Given :-
cosec2 x - 2 = 0
cosec x = \(\sqrt { 2}\)
{ cosec 45º = \(\sqrt { 2}\) }
So, cosec x = cosec 45º
Hence, x = 45º