Let A =8i+9j+ 12k, B=9i+6j+k, and C=3i+5j+10k. Calculate the (scalar) projection CA of C onto the plane of A and B (see illustration below). (Hint: C = C+ CAB) {Ans.: CAB = 11.58} 2 ûn Cn A + CAB Plane of A and B B

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Q: perpendicular

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