Let | A _ 1 |=3, | A _ 2 |=5 and | A _ 1 + A _ 2 |=5 . The value of (2 A _ 1 +3 A _ 2 )…
Physics · NEET · NTA Exams — BASIC MATHEMATICS AND VECTOR
Let \(\left|\vec{A}_{1}\right|=3,\left|\vec{A}_{2}\right|=5\) and \(\left|\vec{A}_{1}+\vec{A}_{2}\right|=5 .\) The value of \(\left(2 \vec{A}_{1}+3 \vec{A}_{2}\right) \cdot\left(3 \vec{A}_{1}-2 \vec{A}_{2}\right)\) is [JEE (Main) 2019]
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(A)
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