Precalc

Given the plane 3x+2y+5z=54 and the points P0(6, 8, 4)[on plane] and P1(13, 18, 5) [not on plane]

A. Find vector n, a vector normal to the plane

B. Find vector v from P0 to P1

C. Find the angle between vector n and vector v

D. Find p, the scalar projection of vector v on vector n

asked by Grace
  1. I have:
    A. vector n= 3*vector i + 2*vector j + 5* vector k

    B. vector v= 7*vector i + 10*vector j + vector k

    C. 52.46 degrees

    And I'm not quite sure for D...

    posted by Grace

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