Given sina = p, the quadratic equat...
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Given sina = p, the quadratic equation, whose roots are (A) px2 + 2x + p = 0 (B) px2 + x + p = 0 (C) px2 - 2x + p = 0 (D) px - x + p = 0

JEE/Engineering Exams
Maths
Solution
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( sin alpha=P ) ( tan frac{4}{2} ) and cat ( frac{alpha}{2} ) are the rates ( =tan frac{alpha}{2} times frac{1}{tan frac{alpha}{2}}=1 ) Whad ( left.operatorname{eq}^{1}=right) ) [ x^{2}-(text { sum of } operatorname{roats}) x+text { product of reats } ] ( Rightarrow x^{2}-frac{2}{p} x+1=0 ) If ( quad 1 x^{2}-2 x+P=0 )
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