Q.13 If the zeroes of the polynomial x2-3x²+x+1 are a-b, a, a+b.
Find a and b.
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Step-by-step explanation:
Sum of zeroes=(-b/a)
(a-b)+(a)+(a+b)=(3/1)
3a=3
a=1
product of zeroes=(-d/a)
(a-b)(a)(a+d)=(-1/1)
(a^2-b^2)(a)=(-1)
a^3-ab^2=(-1)
(1)^2-(1)b^2=(-1)
1-b^2=-1
b^2=2
b=(+√2 and -√2)
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