If tanA and tanB are the roots of the quadratic equation, 3x2−10x−25=0 then the value of 3sin2(A+B)−10sin(A+B)⋅cos(A+B)−25cos2 (A+B) is
Held on 15 Apr 2018 · Verified 6 Jul 2026.
25
−25
−10
10
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