Match the statement of Column I with values of Column II

MATHEMATICS · Subjective · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Match the statement of Column I with values of Column II.
Column IColumn II
A. Let OO be an interior point of △ABC\triangle ABC such that OA+2OB+3OC=0OA + 2OB + 3OC = 0 , then the ratio of the area of △ABC\triangle ABC to the area of △AOC\triangle AOC , with OO as the originp. 0
B. A⋅B=A⋅C=0A \cdot B = A \cdot C = 0 , B⋅C=3/2B \cdot C = 3/2; A⋅A=B⋅B=C⋅C=1A \cdot A = B \cdot B = C \cdot C = 1 , [ABC]=[\mathbf{A} \mathbf{B} \mathbf{C}] =q. 12\frac{1}{2}
C. If a\mathbf{a} , b\mathbf{b} , c\mathbf{c} and d\mathbf{d} are non-zero vectors such that no three of them are in the same plane and no two are orthogonal, then the value of the scalar (b×c)⋅(a×d)+(c×a)⋅(b×d)(a×b)⋅(d×c)\frac{(\mathbf{b} \times \mathbf{c}) \cdot (\mathbf{a} \times \mathbf{d}) + (\mathbf{c} \times \mathbf{a}) \cdot (\mathbf{b} \times \mathbf{d})}{(\mathbf{a} \times \mathbf{b}) \cdot (\mathbf{d} \times \mathbf{c})} isr. 2

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