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If the lines `L_1:2x-3y-6=0,L_2: x+y-4=0`and `L_3: x+2`and `tanA ,tanB`and `tanC`are the roots of the equation `a x^3+b x^2+c x-15=0`then`a=3`(b) `b=-15``c=28`(d) `a+b+c=15`A. `sum tan A = 15/2`B. `sum tan A tan B = 14`C. `tanA tan B tan C = 15/2`D. equation whose roots are `tan A, tan B, tan C` is `2x^(3)- 15x^(2) +28x -15 =0`

Answer» Correct Answer - A


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