If alpha + beta are the zeroes of x^2+7x+7. Find the value of 1/alpha+1/beta -2×alpha×beta
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-15is the answer to your question
karthik413477:
let x,y be roots
Then
1/x+1/y=x+y/xy=-7/7=-1
I mean save
&-2xy=-2×7=-14
so total-15
Puts Apache se note book or like kr explain kr do please
is ir ok
Yo
But not much clear to me
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