Introduction to Dot Product (Scalar Product) Video Lessons

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Problem: Find the angle between a diagonal of a cube and one of its edges. 

FREE Expert Solution

We'll consider a cube of unit length:

Vector OA = 1i + 1j + 1k

|OA| = (12 + 12 + 12)(1/2) = 3(1/2) 

Vector OB = 1i + 0j + 0k 

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Problem Details

Find the angle between a diagonal of a cube and one of its edges. 

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