Question

find the angle between the vector A=6i+8j+10k B= 6i+8j_2k

Answer 1

It is very easy to find the angle between two vectors. There are two formulas you can apply one is vector product and other is scalar product.

cos theta =  (6×6 + 8×8 - 10×10) / ( 20 )0as we know Cos inverse 0 equals to 90 degree. Therefore this is the angle between these two vectors.

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