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  • Need solution for RD Sharma Maths Class 12 Chapter 24 Vector Or Cross Product Exercise Very Short Answer Question, question 24.

Need solution for RD Sharma Maths Class 12 Chapter 24 Vector Or Cross Product Exercise Very Short Answer Question, question 24.

Answers (1)

ANSWER:

\frac{\pi}{3}

HINT:

Just use the formula of cross product

GIVEN:

\begin{aligned} &|\vec{a}|=1 \quad|\vec{b}|=2 \\ &|\vec{a} \times \vec{b}|=\sqrt{3} \end{aligned}

SOLUTION:

We know,

\begin{gathered} |\vec{a} \times \vec{b}|=|\vec{a}||\vec{b}| \sin \theta \\ \quad \sqrt{3}=(1)(2) \sin \theta \\ \therefore \sin \theta=\frac{\sqrt{3}}{2} \\ \therefore \theta=\frac{\pi}{3} \end{gathered}

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