NEET UG PHYSICS MCQ: MOTION IN PLANE

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The value of

\left( {\bar A + \bar B} \right) \times \left( {\bar A - \bar B} \right)

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Correct option: D

- 2\left( {\bar A \times \bar B} \right)

The value of

(\bar A + \bar B) \times (\bar A - \bar B)

-2(\bar A \times \bar B)

after expanding the cross product and using the properties of the cross product.

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\mathrm{\vec a}\,and\,\mathrm{\vec b}

\mathrm{\vec a}\,and\,\mathrm{\vec b}

\overrightarrow P \,\,.\,\,\overrightarrow Q = 0\,and\,\overrightarrow P \,\, \times \,\,\overrightarrow Q = 0

\overrightarrow Q \,and\,\overrightarrow R

\vec{A}=3 \hat{i}+4 \hat{j}

\vec{B}=6 \hat{i}+8 \hat{j}

A

B

\overrightarrow{\mathrm{A}}

\overrightarrow{\mathrm{B}}

{\cot ^{ - 1}}\left( 2 \right)