Prove the following by vector method. Me...

Prove the following by vector method. Measure of the angle between two diagonals of a cube is `cos^-1 (1/3)`

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MBD PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK

If A, B, C are the points (1, 4, 2), (-2,1,2) and (2,-3,4) respectivel...
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Find the acute angle between the lines passing through (-3, -1, 0), (2...
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Prove the following by vector method. Measure of the angle between two...
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Prove the angle between the diagonal of one of the faces of the cube a...
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Find the angle which a double ordinate of length 2a subtends at its ve...
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Find the angle between the lines whose dcs. L, m, n are connected by t...
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If l1,m1,n1andl2,m2,n2 are the direction cosines of two mutually perpe...
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State Ture or False .Through any four points one and only one plane c...
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State True or False . The equation of xy-plane is x + y = 0.
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The plane ax + by + c = 0 is perpendicular to z-axis.
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The equation of the plane parallel to xz-plane and passing through (2,...
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State True or False .The planes 2x - y + z -1 = 0 and 6x - 3y + 3z = 1...
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State true or False .The planes 2x +4y -z + 1 = 0 and x - 2y - 6z + 3 ...
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The distance of a point from a plane is same as the distance of the po...
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The equation of a plane passing through (1, 1, 2) and parallel to x + ...
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The equation of plane perpendicular to z-axis and passing through (1, ...
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The distance between the parallel planes 2x - 3y + 6z +1 = 0 and 4x - ...
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The plane y-z+1=0 is
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A plane whose normal has direction ratios lt 3, -2, k gt is parallel t...
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Find the equation of planes passing throught the points (6,-1,1), (5,1...
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