cos α is a root of the equation 25x 2 + 5x – 12 = 0, –1 < x < 0, then the value of sin 2α…

Mathematics · JEE Advanced · NTA Exams — Complex Numbers and Quadratic Equations

1. 24/25
2. –12/25
3. –24/25
4. 20/25

Answer

(A) 24/25, (C) –24/25

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