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Mnemonic devices for derivatives

by Shay10825
Tags: derivatives, devices, mnemonic
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Oct19-04, 09:39 PM
P: 341
Hi . Does anyone know of an easy way to remember:

d/dx sin x = cos x
d/dx cos x = -sin x
d/dx tan x = (sec^2)x
d/dx sec x = sec x tan x
d/dx cot x = (-csc^2)x
d/dx csc x = -csc x cot x

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Tom McCurdy
Oct19-04, 11:01 PM
P: 1,113
If you work with them ennough you will just memorize them anyway--- Also you could get all the other derivatives from just the quotient rule and the sin and cos properties.. so that might be the easiest way to do it.
Oct19-04, 11:54 PM
P: 86
Yes, just study them with the "flash card" type of study method. Just cover up the answer with your finger, see if you get it right, do it over and over, and try to engrave them into your memory.

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