lim 1-cos(ca- bx+c) The value of x-...
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lim 1-cos(ca- bx+c) The value of x-0 (x-a) where a and B are the roots of ax + bx+C =0 is : A (9-3)? c (0-B)2 D None of these

JEE/Engineering Exams
Maths
Solution
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( alpha+beta=-b / a ) ( alpha beta=c / a ) ( =frac{b^{2}-4 a c}{2} quad(alpha-beta)^{2}=frac{b^{2}}{a^{2}}-frac{4 c}{a} ) ( =frac{a^{2}}{2}(alpha-beta)^{2} quad(alpha-beta)^{2}=b^{2} frac{-4 a c}{a^{2}} ) previously you may get the answer as ( frac{1}{2}left(b^{2}-4 a cright)=frac{a^{2}}{2}(alpha-beta)^{2} ) option ( [C] )
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