Posted by Raj on Sunday, December 19, 2010 at 7:04pm.
the n is supposed to be above the sigma sign and the k=1 is supposed to be below the sigma sign. thanks.
Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well. (I've never heard of a class called "Please Help," have you?? =)
see other post.
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