quiz04 - lim ( x,y,z ) (0 , , 0) xy + yz + zx x 2 + y 2 + z...

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Name: Section (circle one): 10-11 11-12 1. Find the unit tangent vector T ( t ) to the curve r ( t ) = (sin t ) i + 4 j - (tan t ) k at t = π 4 . 2. Find the limit, if it exists, or show that the limit does not exist:
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Unformatted text preview: lim ( x,y,z ) (0 , , 0) xy + yz + zx x 2 + y 2 + z 2 1...
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