1.

Statement-I: If |vec(a).vec(b)|= |vec(a) xx vec(b)| then (vec(a), vec(b))= (pi)/(4) or (3pi)/(4) Statement-II: If vec(a).vec(b)= |vec(a) xx vec(b)| then (vec(a), vec(b))= (pi)/(4) or (3pi)/(4) Which of the above two statements are true?

Answer»

only I
only II
both I and II
neither I nor II

Answer :A


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