Ellardorado's answer to A J's Junior College 1 H2 Maths Singapore question.
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a) Angle formula using dot product between 2 known vectors.
b) From QS=RS, write each side in terms of distance between two points.
c)With the coordinates of 3 points, can find normal vector and get r•n=a•n, convert to cartesian.
dii) Line meets plane at F.
diii) FS=-FT
b) From QS=RS, write each side in terms of distance between two points.
c)With the coordinates of 3 points, can find normal vector and get r•n=a•n, convert to cartesian.
dii) Line meets plane at F.
diii) FS=-FT
Date Posted:
4 months ago
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