MathematicsMedium202×since 2002Q5703The position vectors of the vertices A,B\mathrm{A}, \mathrm{B}A,B and C\mathrm{C}C of a triangle are 2i^−3j^+3k^,2i^+2j^+3k^2 \hat{i}-3 \hat{j}+3 \hat{k}, 2 \hat{i}+2 \hat{j}+3 \hat{k}2i^−3j^+3k^,2i^+2j^+3k^ and −i^+j^+3k^-\hat{i}+\hat{j}+3 \hat{k}−i^+j^+3k^ respectively. Let lll denotes the length of the angle bisector AD\mathrm{AD}AD of ∠BAC\angle \mathrm{BAC}∠BAC where D\mathrm{D}D is on the line segment BC\mathrm{BC}BC, then 2l22 l^22l2 equals :A45B50C42D49Check answerSkip