KAPLAN QUESTION DELETED - Kaplan does not permit us to host any of their questions or to comment on any of their material. Please do not post Kaplan material in future.

If you would like to get an answer to the general math question you originally asked in this post, please re-post just asking the general math question - don't mention Kaplan or any of their materials. (Sorry for the run-around, but we're legally obligated to comply with their request because they own the copyrighted material.)

v pat - please see above