find the domain of given function f(x) = √x^2-11 x+10 + 1 / √(x-1)(2-x)(x-8)
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Answer:
(k-4)x²+2(k-4)x+2=0
IF BOTH THE ROOTS ARE EQUAL;THEN DISCRIMINANT ⇒b²=4ac
then a=k-4; b=2(k-4) ;c=2; substituting the values
(2k-8)²=4×(k-4)×2
4k²+64-32k=8k-32
4k²-40k+96=0
k²-10k+24=0
(k-4)(k-6)=0
k=4,6
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