My textbook states. But I got the summation to equal -2k+4. I don't see how the textbook got the LHS to equal to the RHS. Thanks in advance.
Last edited by Simplicity; Nov 23rd 2009 at 02:58 AM.
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Originally Posted by Simplicity My textbook states. But I got the summation to equal -2k+4. I don't see how the textbook got the LHS to equal to the RHS. Thanks in advance.
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