15. If seca, tana are roots of ax2 ...
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15. If seca, tana are roots of ax2 + bx + c = 0, then (1) a4 – 64 + 4abc = 0 (2) a4 + 64 – 4ab2c = 0 (3) a? – b2 = 4ac a2 + b2 = act os porno

JEE/Engineering Exams
Maths
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