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Thomas Calculus 13th [Solutions]

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Section 14.4 The Chain Rule 1003<br />

18. w w u w v<br />

x u x v x<br />

w w u w v<br />

y u y v y<br />

19.<br />

z z x z y<br />

t x t y t<br />

z z x z y<br />

s x s y s<br />

20.<br />

y dy u<br />

r du r<br />

21. w dw u<br />

s du s<br />

w dw u<br />

t du t<br />

22.<br />

w w x w y w z w v<br />

p x p y p z p v p<br />

23. w w dx w dy w dx dy<br />

since 0<br />

r x dr y dr x dr dr<br />

w w dx w dy w dy<br />

since dx 0<br />

s x ds y ds y ds ds<br />

Copyright<br />

2014 Pearson Education, Inc.

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