Teaching EMRS PGT Mock Test 2023 Mathematics Trigonometry Trigonometric Functions

अंतराल 0 ≤ x < 2π पर x के लिए समीकरण sin2 x - sin x - 2 = 0 को हल कीजिए। 

1
\(\dfrac{3\pi}{2}\)
2
\(\dfrac{\pi}{4},\dfrac{2\pi}{7}\)
3
\(\dfrac{2\pi}{3},\dfrac{2\pi}{5}\)
4
इनमें से कोई नहीं 
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