ધારો કે $\vec{a}=-\hat{i}-\hat{j}+\hat{k}$,$\vec{a} \cdot \vec{b}=1$ અને $\vec{a} \times \vec{b}=\hat{i}-\hat{j}$. તો $\vec{a}-6 \vec{b}$ ની કિંમત શોધો.

  • A
    $3(\hat{i}-\hat{j}-\hat{k})$
  • B
    $3(\hat{i}+\hat{j}+\hat{k})$
  • C
    $3(\hat{i}-\hat{j}+\hat{k})$
  • D
    $3(\hat{i}+\hat{j}-\hat{k})$

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Similar Questions

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

ધારો કે $\vec{a}=-5 \hat{i}+\hat{j}-3 \hat{k}$,$\vec{b}=\hat{i}+2 \hat{j}-4 \hat{k}$ અને $\vec{c}=(((\vec{a} \times \vec{b}) \times \hat{i}) \times \hat{i}) \times \hat{i}$ છે. તો $\vec{c} \cdot(-\hat{i}+\hat{j}+\hat{k})$ ની કિંમત શોધો.

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

જો $\vec{A} = \hat{i} - 2\hat{j} - 3\hat{k}$,$\vec{B} = 2\hat{i} + \hat{j} - \hat{k}$,અને $\vec{C} = \hat{i} + 3\hat{j} - 2\hat{k}$ હોય,તો $(\vec{A} \times \vec{B}) \times \vec{C} = \dots$

ધારો કે $\vec{a}=2 \hat{i}+3 \hat{j}+4 \hat{k}, \vec{b}=2 \hat{i}-2 \hat{j}-2 \hat{k}$ અને $\vec{c}=-\hat{i}+4 \hat{j}+3 \hat{k}$. જો $\vec{d}$ એ $\vec{b}$ અને $\vec{c}$ બંનેને લંબ સદિશ હોય અને $\vec{a} \cdot \vec{d}=18$ હોય,તો $|\vec{a} \times \vec{d}|^2$ ની કિંમત $..........$ થાય.

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