Ryabushko A.P. IDZ 3.1 option 20

Ryabushko A.P. IDZ 3.1 option 20

№1.20. Given four points A1 (1; 1; 3); A2 (6; 5; 8); A3 (3, 5, 8); A4 (8; 4; 1). Be the equation: a) plane A1A2A3; b) direct A1A2; c) direct A4M perpendicular to the plane A1A2A3; d) A3N straight, parallel to the line A1A2; d) a plane passing through the A4, perpendicular to the line A1A2. Calculate: e) The sine of the angle between the line and the plane A1A4 A1A2A3; g) the cosine of the angle between the coordinate plane and the plane Oxy A1A2A3;
№2.20. Find the equation of the plane; passing through the axis Oy, and a point M (3, -5, 2).
№3.20. When the D value which intersects the line .... Oz?

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