## Related questions with answers

Question

Answer the exercise given below.

Let $f(x)=x^2-2 x$. Find:

(a) $f^{\prime}(x)$

(b) $f^{\prime}(-1), f^{\prime}(1), f^{\prime}(2)$

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 3The derivative of a function $f(x)$ at a number $x=a$, denoted by $f' (a)$, is defined by

$f'(a) = \lim_{h \to 0} \frac{f(a + h) - f(a)}{h}, h\geq 0\tag{1}$

if this limit exists.

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