Analytical Geometry – Calculate angle between lines- Exercise 4419

Exercise

Calculate the cosine of the angle between the line

\frac{x-1}{2}=\frac{y+2}{1}=\frac{z+5}{3}

And between the line given as the intersection of the two plains

2x-y+3z=1

5x+4y-z=7

Final Answer

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Solution

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