6. Ifa and B are the zeros of the quadratic polynomial f(x) = x2 + x - 2, find the value of
1/alpha -1/beta
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f(x) = x2 + x - 2
f(x)=x^2-1x+2x-2
f(x)=x(x-1)+2(x-1)
f(x)=x+2=0. x-1=0
f(x)=x=-2. x=1
-2,1 are the zeroes of the polynomial
alpha=-2 beta=1
1/alpha -1/beta
1/-2-1/1
(1×1)-(-2×1)/-2
1+2/-2
3/-2
The value of 1/alpha -1/beta=3/-2
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