Please help me to solve this problem:

Prove that:

Where

Thanks in advance..

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- Jan 10th 2011, 05:38 AMkjchauhanVector Differentiation
Please help me to solve this problem:

Prove that:

Where

Thanks in advance.. - Jan 10th 2011, 06:30 AMsnowtea
Hint:

. - Jan 10th 2011, 06:50 AMkjchauhan
- Jan 10th 2011, 06:52 AMsnowtea