Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it. ...

AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it. (Ronald Graham)

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Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.

Ronald Graham Quotes: AB=(1/4)((A+B)2-(A-B)2) is an amazing identity, and unfortunately I have to remind my current students how to prove it.