Mathematics · Trigonometric Equations

अंतराल [0, 2π] में त्रिकोणमितीय समीकरण 8 cos2θ + 14 cosθ + 5 = 0 का हल समुच्चय है:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

सही उत्तर देखें

{2π3, 4π3}

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