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Please Solve RD Sharma Class 12 Chapter 22 Algebra of Vectors Exercise 22.6 Question 1 Maths Textbook Solution.

Answers (1)

Answer:

The magnitude of the vector is 7.

Hint:

Square and add using vector magnitude formula.

Given:

\vec{a}=2 \hat{\imath}+3 \hat{\jmath}-6 \hat{k}

Solution:

Given: \vec{a}=2 \hat{\imath}+3 \hat{\jmath}-6 \hat{k}

We know that

\begin{aligned} |\vec{a}| &=\sqrt{\left[2^{2}+3^{2}+(-6)^{2}\right]} \\ &=\sqrt{4+9+36} \\ &=\sqrt{49}=7 \end{aligned}

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