Identify Function and Rule: Identify the function and the rule needed for differentiation.We have y=(x−1)2, which is a basic power function.Using the power rule for differentiation, where if y=un, then y′=n⋅u(n−1)⋅u′.
Differentiate Inside Function: Differentiate the inside function u=x−1. Differentiating u=x−1 gives us u′=1.
Apply Chain Rule: Apply the chain rule.Using the power rule and the result from the previous step, the derivative y′=2⋅(x−1)2−1⋅1.Simplify to get y′=2⋅(x−1).
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