hw7 - Homework 7 Math 118C, Spring 2010 Due on Tuesday,...

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Homework 7 – Math 118C, Spring 2010 Due on Tuesday, June 1st, 2010 1. Verify Stokes’ theorem for ω = x dx + xy dy with D as the unit square with opposite vertices at (0 , 0) and (1 , 1). 2. Evaluate the integral of ω = ( x y 3 ) dx + x 3 dy around the circle x 2 + y 2 = 1 using Stokes’ theorem. 3. Find a 1-form ω for which = ( x 2 + y 2 ) dx dy , and use this to evaluate i D ( x 2 + z 2 ) dx dy, where D is the region inside the square | x | + | y | = 4 and outside the circle x 2 + y 2 = 1. 4. Show that the volume of a suitably well-behaved region R in space is given by the formula v ( R ) = 1 3 i ∂R ( x dy dz + y dz dx + z dx dy ) . 5. Verify the invariance relation ( ) T = d ( ω T ) when ω = x dy dz and T is the transformation x = u + v w , y = u 2 v 2 , and z = v + w 2 . 6. Let F = F 1 e 1 + F 2 e 2 + F 3 e 3 be a C 1 mapping of an open set E R 3 into R 3 . With this vector ±eld we associate the 1-form λ
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This note was uploaded on 12/27/2011 for the course MATH 118c taught by Professor Garcia during the Fall '09 term at UCSB.

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hw7 - Homework 7 Math 118C, Spring 2010 Due on Tuesday,...

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