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**Unformatted text preview: **change the value of the function? → Mixed variables are also possible: ( 29 , cos x f x y x y ye = + cos x df y ye dx = + cos x d df d y ye dy dx dy = + 2 sin x d f y e dy dx = -+ sin x yx f y e = -+ sin x df x y e dy = -+ sin x d df d x y e dx dy dx =-+ 2 sin x d f y e dx dy = -+ sin x xy f y e = -+ ( 29 , cos x f x y x y ye = + Both answers are the same! π...

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- Fall '05
- Riggs
- Derivative, Differential Calculus, Hanford High School, Greg Kelly, dy dx dy, dx dy dx