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 ______.
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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 ______.
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