Math, asked by bhaleraoyatharth, 7 months ago

If a is a root of 25cos2 θ + 5cosθ − 12 = 0, π 2 < a < π then sin 2 a is equal to

: A) – 24/25 B) -13/18 C) 13/18 D) 24

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Answered by anitaguptaraju917

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