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April 19, 2014

Homework Help: Precalc

Posted by Grace on Monday, January 16, 2012 at 8:39pm.

Suppose vector a is 3 units long, the magnitude of vector b is 1 units and cos (θ) = -0.3, where θ is the angle between the two vectors when they are placed tail-to-tail. What does the inner product of vector a and vector b equal?

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