Recall from linear algebra the definition of the projection of one vector onto another. As 611 01 before, we have 3dimensional vectors x') = a2 and
Question

# We have 3-dimensional vectors ﻿x1⎣⎢⎡​a1​a2​a3⎦⎥⎤﻿x2⎣⎢⎡​a1​−a2​a3⎦⎥⎤﻿Px

﻿

and

﻿

What is the signed magnitude c of the projection ﻿

of ﻿﻿ onto ﻿﻿ ?

More precisely, let u be the unit vector in the direction of the correct choice above, find a number c such that ﻿﻿ = cu

﻿

Image transcriptions

Recall from linear algebra the definition of the projection of one vector onto another. As 611 01 before, we have 3—dimensional vectors x") = a2 and 36(2) = —a2 a3 03 Which of these vectors is in the same direction as the projection of x") onto x9)?

What is the signed magnitude c of the projection px(1)_,x(2) of x") onto x0)? More precisely, let u be the unit vector in the direction of the correct choice above, find a number c such that Px(1)—&gt;x(2) = cu.

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