If `vec(a)=3hati-hatj+2hatk,vec(b)=hati-3hatk` and `vec( c )=hati+2hatj` then find (i) `vec(a).vec(b)` (ii) `(vec(a)+vec(b)).vec( c )` (iii) `(vec(a)-vec(b)).(vec(b)-vec( c ))` (iv) `(vec(a)+2vec(b)).vec(b)` (v) `(vec(a)-3vec( c )).(2vec(a)+vec(b))`
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The correct Answer is:
(i) -3 (ii) 2 (iii) -13 (iv) 17 (v) 16
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KUMAR PRAKASHAN-VECTOR ALGEBRA -Practice Paper - 10 (Section-D)
