જો $\overline{a}=\frac{1}{\sqrt{10}}(4 \hat{i}-3 \hat{j}+\hat{k})$ અને $\overline{b}=\frac{1}{3}(\hat{i}+2 \hat{j}+2 \hat{k})$ હોય,તો $(2 \bar{a}-\bar{b}) \cdot \{(\bar{a} \times \bar{b}) \times (\bar{a}+2 \bar{b})\}$ ની કિંમત શોધો.

  • A
    $5$
  • B
    $-3$
  • C
    $-5$
  • D
    $3$

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Similar Questions

જો $\vec{a}$ અને $\vec{b}$ પરસ્પર લંબ હોય,તો $\vec{a} \times(\vec{a} \times(\vec{a} \times(\vec{a} \times \vec{b})))$ ની કિંમત શોધો.

જો $\bar{x} \cdot \bar{y} = 0$ હોય,તો $\bar{x} \times (\bar{x} \times \bar{y}) = \dots$ જ્યાં $|\bar{x}| = 1$.

જો $a = i + j - k$,$b = i - j + k$,અને $c = i - j - k$ હોય,તો $a \times (b \times c) = \dots$

ધારો કે $a, b, c$ ત્રણ સદિશો છે. તો $a \times (b \times c) = (a \times b) \times c$ જો:

જો $\vec{a} = \hat{i} + 2\hat{j} + 3\hat{k}$ અને $\vec{b} = \hat{i} \times (\vec{a} \times \hat{i}) + \hat{j} \times (\vec{a} \times \hat{j}) + \hat{k} \times (\vec{a} \times \hat{k})$ હોય,તો $|\vec{b}|$ શોધો.

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