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Assertion (A): If tanalpha, tanbeta are ...

Assertion (A): If `tanalpha, tanbeta` are the roots of `x^2+px+q=0`, then `tan(alpha + beta) = p/(1-q)` Reason(R): If `alpha, beta` are the roots of `ax^2+bx+c=0` then `alpha+beta=-b/a and alphabeta-c/a` (i) Both A and R are true , R is correct explanation of A (ii) Both A and R are true , R is incorrect explanation of A (iii) A is true, R is false (iv) A is false, R is true

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