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The line l1 has the direction vector h1,0,−1i and passes through the point (0,−1,−1). The line...

The line l1 has the direction vector h1,0,−1i and passes through the point (0,−1,−1). The line l2 passes through the points (1,2,3) and (1,3,2).

a. [2] What is the angle between l1 and l2 in radians? The answer should lie between 0 and π/2.

b. [6] What is the distance between l1 and l2?

Math   Calculus   
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