1.

Find the co-ordinates of the foot of the perpendicular drawn from the origin. 5y + 8 = 0

Answer»


ANSWER :The DIRECTION cosines of the normal to the plane are 0, -1, 0 and the distance of the plane from the ORIGIN is `8/5` (see example 1 (d) above)
`therefore` The co-ordinates of the FOOT of the PERPENDICUALR `= (0, (-8)/5, 0)`


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