The domain of the function f given by f(x) = X2 + 2x+1/x2-x-6
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Answer:
R−{3,−2}
R−{−3,2}
R−[−3,−2]
R−[−3,−2]
Answer :
A
Solution :
We have, f(x)=x2+2x+1x2−x−6
f(x) is defined , if x2−x6=0
⇒x2−3x+2x−6=0
⇒x(x−3)+2(x−3)=0
⇒(x−3)(x+2)=0
∴x=−3,−2
∴ Domain of f=R-{3,-2}`
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