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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THREE DIMENSIONAL GEOMETRY
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SHARAM PUBLICATION-VECTORS-EXAMPLE

Calculate the area of the triangle ABC (by vector method) where A(1,2,...
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If veca, vecb, vecc are mutually perpendicular vectors of equal magnit...
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Prove the following by vector method. Measure of the angle between two...
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Prove by vector method that the lines joining the mid points of consec...
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if veca=2hati-5hatj+8hatk, vecb=hati-3hatj-7hatk and vecc=-3hati+2hatj...
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If veca = 3hati+3hatj+hatk and vecb = -2hati+hatj-2hatk then what is t...
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Find the angle between the vectors 3hati + 4hatj and 2hati+hatj+sqrt3h...
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What is the angle between two vectors veca and vecb with magnitude 2 a...
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If veca = 3hati+3hatj+hatk and vecb = -2hati+hatj-2hatk then what is t...
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Find the component of the vector vec(b) = 8hat(i) + hat(j) in the dire...
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What is the value of x so that the vector 6hati+2hatj-3hatk and hati-4...
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Determine mu, for which the vector vec(a)=mu(6hat(i)+2hat(j)-3hat(k)) ...
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How many directions a null vector has ?
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If veca,vecb andvecc are three mutually perpendicular vectors, each of...
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What is the volume of the parallelopiped whose sides are given by the ...
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Write the values of m and n for which the vectors (m-1)overset^i+(n+2)...
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Show that the vectors 2hati + 3hatj,5hati -5hatk and 6hatj + 4hatk are...
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If A, B, C, D, E are the.vertices of a regular pentagon, find the vect...
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If vec(a).vec(b) = 0 and vec(a) xx vec(b) = vec(0), then draw the conc...
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Find a vector in the direction of vector 2hati-3hatj+6hatk which has m...
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