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[" If "[[" a "," b "," ( "]=4" then "[ve...

[" If "[[" a "," b "," ( "]=4" then "[vec a timesvec bb timesvec c*vec c timesvec a]=]," IAIEEE-2002"],[[" (1) "4," (2) "2," (3) "8," (4) "16]]

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Solve (vec a timesvec a)*vec b

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"If [[vec a+vec b,vec b+vec c,vec c+vec a]]=8 then the value of [(vec a timesvec b)(vec b timesvec c)(vec c timesvec a)]^(2)/(|[vec a*vec a,vec a*vec b,vec a*vec c],[vec b*vec a,vec b*vec b,vec b*vec c],[vec c*vec a,vec c*vec b,vec c*vec c]|)=lambda

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If vec a+vec b+vec c=vec 0 ,then (1) vec a timesvec b=vec b timesvec c=vec c timesvec a (2) vec a timesvec b=vec c (3) vec a.vec b=vec b.vec c=bar(c).bar a

vec(i)timesvec(j)= (a) vec0 (b) 1 (c) -vec k (d) vec k

Let vec a,vec b,vec c be three vectors in the xyz space such that vec a times vec b=vec b timesvec c=vec c timesvec a!=0 If A,B,C are points with position vectors vec a,vec b,vec c respectively,then the number of possible positions of the centroid of triangle ABC is (A) 1 (B) 2 (C) 3 (D) 6

7.Let vec a,vec b and vec c be three unit vectors such that vec a+vec b+vec c=vec 0 .If lambda=vec a*vec b+vec b*vec c+vec c*vec a , vec d=vec a timesvec b+vec b timesvec c+vec c timesvec a ,then the ordered pair (lambda,vec d) is equal to , 1) (-(3)/(2),3vec c timesvec b) 2) ((3)/(2),3vec a timesvec c) 3) (-(3)/(2),3vec a timesvec b) 4) ((3)/(2),3vec b timesvec c)

If vec a = vec i + vec j + vec k, vec b = vec i - vec j + vec k and vec c = vec i + 2vec j - vec k, then the value of | [vec a.vec a, vec a.vec b, vec a.vec c], [vec b.vec a, vec b.vec b, vec b.vec c], [vec c.vec a, vec c.vec b, vec c.vec c ] | is equal to: (1) 2 (2) 4 (3) 16 (4) 64