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Q.

If α,ß be the roots of the equation (xa)(xb)+c=0(c0), then the roots of the equation (xcα)(xcβ)=c are

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a

a and b + c

b

a + c and b

c

a + c and b + c

d

a – c and b – c

answer is C.

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Detailed Solution

x2x(2c+α+β)+c2+c(α+β)+αβc=0

sum of the roots=2c+α+β=2c+a+b=c+a+c+b

product of the roots  c2+c(α+β)+αβc

=c2+c(a+b)+ab=(c+a)(c+b)
The roots are c + a, c + b.

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