Multivariable CalculusEasyLines & Planes in Space ShareLines & Planes in Space · Easy problemThe lines r1(t)=t⟨2,−4,6⟩\mathbf r_1(t) = t\langle 2, -4, 6\rangler1(t)=t⟨2,−4,6⟩ and r2(s)=(1,1,1)+s⟨−1,a,−3⟩\mathbf r_2(s) = (1, 1, 1) + s\langle -1, a, -3\rangler2(s)=(1,1,1)+s⟨−1,a,−3⟩ are parallel. Find aaa.Check Show answer Walk through it step by step Practice more like this Review this concept