MCQ
જો સદિશો $\overrightarrow{a}=\hat{i}-\hat{j}+2\hat{k},\overrightarrow{b}=2\hat{i}+4\hat{j}+\hat{k}$ અને $\overrightarrow{c}=\lambda\hat{i}+\hat{j}+\mu\hat{k}$ એ પરસ્પર લંબ હોય તો $\mu-\lambda=\ ........$
- A$-5$
- B$4$
- C$2$
- ✓$5$
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