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If the roots of the quadratic equation x^2 + px + q = 0 are tan30° and tan15°,

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If the roots of the quadratic equation x2 + px + q = 0 are tan30° and tan15°, respectively then the value of 2 + q – p is
(a) 2 

(b) 3 

(c) 0 

(d) 1.

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