10. If the curves f(x, y) = 0, y, z) = 0 touch, show that at the point of contact, dr dø dr dø dy dx дх ду

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.5: Applications
Problem 17EQ
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dx
dy
10. If the curves f(x, y) = 0, Ø( y, z) = 0 touch, show that at the point of contact,
df dø df dø
дх ду ду дх
Transcribed Image Text:dx dy 10. If the curves f(x, y) = 0, Ø( y, z) = 0 touch, show that at the point of contact, df dø df dø дх ду ду дх
%3D
2.
4. If x =r cos 0, y =r sin 0, prove that
3. If u = lx + my, v = mx -ly, show that
ne
%3D
ne
ne
Transcribed Image Text:%3D 2. 4. If x =r cos 0, y =r sin 0, prove that 3. If u = lx + my, v = mx -ly, show that ne %3D ne ne
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