Given left| {{vec A₁}} right| = 2,,left| {{vec A₂}} right| = 3 and left| {{{vec A}?

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3-1.Vectors

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Given $\left| {{\vec A_1}} \right| = 2,\,\left| {{\vec A_2}} \right| = 3$ and $\left| {{{\vec A}_1} + {{\vec A}_2}} \right| = 3$. Find the value or $\left| {\left( {{{\vec A}_1} + 2{{\vec A}_2}} \right) \times \left( {3{{\vec A}_1} - 4{{\vec A}_2}} \right)} \right|$

A

$64$

B

$60$

C

$62$

D

$61$

Solution

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Standard 11

Physics

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