if alpha and beta are the roots of ax²-bx+c=0,then alpha+beta is?
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if alpha and beta are the roots of ax²-bx+c=0,then alpha+beta is?
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Answer:
If alpha and beta are roots of equation ax2+bx+c=0 then
Alpha+ Beta= -b/a and Alpha×Beta = c/a
Here in this case ,
Alpha+ Beta = -(-b)/a=b/a …….(i)
and Alpha×Beta = c/a. …….(ii)
So two unknowns and two equations which can be solved to calculate alpha and beta.
Step-by-step explanation:
hope it will help you