Asked by Christian
I need some help understanding this limit formula, could someone please explain how to solve for f(x)=x^2+1 using this formula:
(f(x+Δx)-f(x))/(Δx)
(f(x+Δx)-f(x))/(Δx)
Answers
Answered by
lina
this is how you plug it in:
[(x + Δx)^2 + 1- (x^2 + 1)]/(Δx)
Rework the equation to get:
Δx + 2x, in it should be lim as Δx goes to 0, and that would leave you with 2x, which if you used easy method, leaves you with same answer.
[(x + Δx)^2 + 1- (x^2 + 1)]/(Δx)
Rework the equation to get:
Δx + 2x, in it should be lim as Δx goes to 0, and that would leave you with 2x, which if you used easy method, leaves you with same answer.
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