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Finding the slope using limits
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I managed to find the answer using uv'-vu'/v^2 but I wanna know how we can find the answer using limits with something like f(x+h)-f(x)/h
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#2
(Original post by cj104)
I managed to find the answer using uv'-vu'/v^2 but I wanna know how we can find the answer using limits with something like f(x+h)-f(x)/h
![Name: Screenshot 2020-10-12 at 11.15.50 AM.png
Views: 6
Size: 29.0 KB]()
I managed to find the answer using uv'-vu'/v^2 but I wanna know how we can find the answer using limits with something like f(x+h)-f(x)/h
It is now useful to use Binomial theorem on
in increasing powers of 
since is small when it tends to zero.EDIT: Even better, just multiply numerator and denominator by
, simplify to get rid of the singularity at h=0, and get the limit by subbing in h=0.
Last edited by RDKGames; 3 months ago
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(Original post by RDKGames)
EDIT: Even better, just multiply numerator and denominator by, simplify to get rid of the singularity at h=0, and get the limit by subbing in h=0.
EDIT: Even better, just multiply numerator and denominator by
, simplify to get rid of the singularity at h=0, and get the limit by subbing in h=0.
is differentiable.
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