1.

If tanA,tanB,tanC are the roots of the equation x3−3x2−2x+1=0, then the value of sin2(A+B+C)+sin(A+B+C)cos(A+B+C) is

Answer»

If tanA,tanB,tanC are the roots of the equation x33x22x+1=0, then the value of sin2(A+B+C)+sin(A+B+C)cos(A+B+C) is



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