MathematicsMedium202×since 2002Q5727If a→\overrightarrow aa and b→\overrightarrow bb are perpendicular, then a→×(a→×(a→×(a→×b→)))\overrightarrow a \times \left( {\overrightarrow a \times \left( {\overrightarrow a \times \left( {\overrightarrow a \times \overrightarrow b } \right)} \right)} \right)a×(a×(a×(a×b))) is equal to :A12∣a→∣4b→{1 \over 2}|\overrightarrow a {|^4}\overrightarrow b21∣a∣4bB0→\overrightarrow 00Ca→×b→\overrightarrow a \times \overrightarrow ba×bD∣a→∣4b→|\overrightarrow a {|^4}\overrightarrow b∣a∣4bCheck answerSkip