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September 2, 2014

September 2, 2014

Posted by **Johnny** on Saturday, May 11, 2013 at 3:53pm.

- Calculus and Vectors -
**Count Iblis**, Saturday, May 11, 2013 at 7:06pm(a-5b).(a-b) = 0 ---->

a^2 + 5 b^2 - 6 a.b = 0

a^2 = b^2 = 1 (as a and b are unit vectors), therefore:

a.b = 1

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