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Wikipedia:Reference desk/Archives/Mathematics/2016 April 5

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April 5

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Vector proof

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Given a Quadrilateral and are midpoints of respectively,

Prove: . יהודה שמחה ולדמן (talk) 09:44, 5 April 2016 (UTC)[reply]

Please see our note at the top of the page regarding homework. What have you done so far and where are you stuck?
To start you out:
  • Have you drawn a diagram of the problem?
  • Do you know and understand why, given the points , then ?
  • How many ways can you represent in terms of vectors not utilizing the points ?
  • Can you think of a way to combine those equations so that you can solve for in the desired terms?
Our relevant article is Vector addition. -- ToE 14:07, 5 April 2016 (UTC)[reply]