Apply Power Rule: We need to find the derivative of the function f(x)=x−2 with respect to x. To do this, we will use the power rule for differentiation, which states that if f(x)=xn, then f′(x)=n⋅xn−1.
Calculate Derivative: Applying the power rule to f(x)=x−2, we get f′(x)=(−2)⋅x−2−1=−2⋅x−3.
Substitute x=2: Now we need to evaluate the derivative at x=2. So we substitute x with 2 in the expression for f′(x) to get f′(2)=−2⋅(2)−3.
Evaluate f′(2): Calculating the value of f′(2), we have f′(2)=−2×(231)=−2×(81)=−82.
Simplify Fraction: Simplifying the fraction−82, we get f′(2)=−41.
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