Find the difference quotient for a f(x) = square root of (x-1), and then rationalization

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Find the difference quotient for a f(x) = square root of (x-1), and then rationalization

Find the difference quotient for a f(x) = square root of (x-1), and then rationalization
Find the difference quotient for a f(x) = square root of (x-1), and then rationalization

Find the difference quotient for a f(x) = square root of (x-1), and then rationalization
difference quotient
=[f(x+h)-f(x)]/h
=[√(x+h-1)-√(x-1)]/h