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CUET
General Test
Quantitative Reasoning
Trigonometry
If $3sec^2 x - 4 = 0 $, then the value of x ( 0 < x < 90°)
15°
45°
30°
60°
3 sec²x - 4 = 0
3 sec²x = 4
secx = \(\frac{2 }{√3}\)
{ we know, sec30º = \(\frac{2 }{√3}\) }
So,
x = 30º