What is the angle between $< 0, 2, - 8 >$ $<0,2,-8>$ and $< - 2, 1, 4 >$ $< -2,1,4 >$ ?

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What is the angle between $< 0, 2, - 8 >$ $<0,2,-8>$ and $< - 2, 1, 4 >$ $< -2,1,4 >$ ?

1 Answer

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Answer 1 · 2016-02-18T05:38:54

130.8 deg, nearly.

Explanation:

Use the formula for scalar (dot) product of two vectors.
The angle is arc cos (cross product if the components)/(product of the lengths of the vectors.
Here it is arc cos( $-$ $-$ 30 $/ (\sqrt{68} \sqrt{31}$ $/(sqrt68sqrt31$ )

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What is the angle between $< 0, 2, - 8 >$ $<0,2,-8>$ and $< - 2, 1, 4 >$ $< -2,1,4 >$ ?

1 Answer

Explanation:

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What is the angle between <0,2,−8><0,2,-8> and <−2,1,4>< -2,1,4 >?

1 Answer

Explanation:

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What is the angle between $< 0, 2, - 8 >$ $<0,2,-8>$ and $< - 2, 1, 4 >$ $< -2,1,4 >$ ?