The domain of is

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

The domain of

f(x)=\frac{\log\left(\sin^{-1}\sqrt{x^2+x+1}\right)}{\log(x^2-x+1)}

is (1)

(-1,1)

(2)

(-1,0)\cup(0,1)

(3)

(-1,0)\cup\{1\}

(4) None of these