If 4hati+5hatj+hatk,-(hatj+hatk),3hati+9...

If `4hati+5hatj+hatk,-(hatj+hatk),3hati+9hatj+4hatk` and `4(-hati+hatj+hatk)` are position vectors of the points A, B, C and D then prove that A, B, C, D are coplannar.

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KUMAR PRAKASHAN-VECTOR ALGEBRA -Textbook Illustrations for Practive Work

Find |vec(a)-vec(b)|, if two vectors vec(a) and vec(b) are such that |...
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If vec(a)is a unit vector and (vec(x)-vec(a)).(vec(x)+vec(a))=8 then f...
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For any two vectors vecaandvecb , we always have |veca*vecb|le|veca||v...
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For any two vectors vec(a) and vec(b), we always have |vec(a)+vec(b)|l...
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Show that the points A(-2hati+3hatj+5hatk),B(hati+2hatj+3hatk)andC(7ha...
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Find |vecaxxvecb|, if veca=2hati+hatj+3hatk and vecb=3hati+5hatj-2hatk
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Find a unit vector perpendicualr to each of the vectors (vec(a)+vec(b)...
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Find the area of atriangle having the points A(1,1,1), B (1,2,3) and C...
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Find the area of a parallelogram whose adjacent sides are given by the...
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If vec(a)=2hati+hatj+3hatk,vec(b)=-hati+2hatj+hatk and vec( c )=3hati+...
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Show that the vectors vec(a)=hati-2hatj+3hatk,vec(b)=-2hati+3hatj-4hat...
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If the vectors vec(a)=hati+3hatj+hatk,vec(b)=2hati-hatj-hatk and vec( ...
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If 4hati+5hatj+hatk,-(hatj+hatk),3hati+9hatj+4hatk and 4(-hati+hatj+ha...
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Prove that [vec(a)+vec(b), vec(b)+vec( c ), vec( c )+vec(a)]=2[vec(a)...
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Prove that [vec(a),vec(b),vec( c )+vec(d)]=[vec(a),vec(b),vec( c )]+[v...
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Write all the unit vectors in XY-plane.
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If hati+hatj+hatk,2hati+5hatj,3hati+2hatj-3hatk and hati-6hatj-hatk ar...
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Let vec(a),vec(b) and vec( c ) be three vectors such that |vec(a)|=3,|...
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Three vectors vec(a),vec(b) and vec( c ) satisfy the condition vec(a...
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If with reference to the right handed system of mutually perpendicular...
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