If tanA and tanB are the roots of the quadratic equation,3x^2-10x-25=0, then the value of 3\text{\sin}^2(A+B)-10\text{\sin}(A+B)·\text{\cos}(A+B)-25\text{\cos}^2(A+B) is: [Main 15 April 2018 S1]

Quadratic Equation and Inequalities Part 1

Section: Mathematics

Question : 62 of 100

Marks: +1, -0

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:

[Main 15 April 2018 S1]

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