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**1. Homework Statement**

Prove that the lines r=(a,b,c)+t(d,e,f) and q=(h,i,j)+s(k,l,m) intersect, and find the coordinates of their point of intersection. Also, find the acute angle between their lines

**2. Homework Equations**

**3. The Attempt at a Solution**

I have no attempt because i'm stumpped...