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A : If bara, barb, barc form a left handed orthogonal system such that bara.bara= 4, barb.barb =9, barc.barc =16 rArr [barabarbbarc]=-24 R : For left handed system [bara barb barc] < 0 , and bara.bara =abs(bara)^(2) , for orthogonal vectors bara, barb, barc, [barabarbbarc] =pm(absbara.absbarb.absbarc) The correct answer is

Answer»

A,R are TRUE, R is correct explanation of A
A,R are true, R is not correct explanation of A
A is true, R is false
A is true, R is false

Answer :A


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