# Answer to Question #46099 in Analytic Geometry for Sapna

Question #46099

Show that the angle between the two lines in which the plane

intersects the cone is . (4)

(b) Using projection show that the line passing through (-1, 8, 8) and (6, 2, 0) is

perpendicular to the line passing through (4, 2, 3) and (2, 1, 2). (2)

(c) At what point the origin must be shifted so that linear terms in the conicoid

vanish? Justify.

intersects the cone is . (4)

(b) Using projection show that the line passing through (-1, 8, 8) and (6, 2, 0) is

perpendicular to the line passing through (4, 2, 3) and (2, 1, 2). (2)

(c) At what point the origin must be shifted so that linear terms in the conicoid

vanish? Justify.

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