obtain a condition that one root of quadratic equation ax^2 + bx + c=0 is double the other.
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let the roots be m and 2m
so m+2m=(-b/a)
3m=-b/a
and., m*2m=(c/a)
2m*(-b/3a)=c/a
m=(-3c/2b)
so m+2m=(-b/a)
3m=-b/a
and., m*2m=(c/a)
2m*(-b/3a)=c/a
m=(-3c/2b)
saurabhsemalti:
this is one... if this is not ans... then do one this square the first eqn and divide it by second,, u will get a relation independent of m
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