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CALCULUS. Check my answers, please! :)
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The domain of f(x)=(1)/(sqrt(x^2-6x-7)) is
(1, 7) [-1, 7] x > -1 or x < 7 ***{x < -1}U{x > 7} (-∞, -1]U[7, ∞) 2. In which of
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Samantha
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