For any vector A , i ( i A )+ j ( j A )+ k ( k A ) simplifies to
Mathematics · JEE Advanced · NTA Exams — Three Dimensional Geometry
For any vector \(\vec{A}, \hat{i} \times(\hat{i} \times \vec{A})+\hat{j} \times(\hat{j} \times \vec{A})+\hat{k} \times(\hat{k} \times \vec{A})\)simplifies to
- \(3 \overrightarrow{\mathrm{~A}}\)
- \(\overrightarrow{\mathrm{A}}\)
- \(-\overrightarrow{\mathrm{A}}\)
- \(-2 \overrightarrow{\mathrm{~A}}\)
Answer
(D) -2 ~A
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