MCQ
ઉગમ બિંદુથી $\overrightarrow{r}=4\hat{i}+2\hat{j}+4\hat{k}+\lambda(3\hat{i}+4\hat{j}-5\hat{k})$ પરનાં લંબની લંબાઈ $........$ છે.
- ✓$6$
- B$4$
- C$7$
- D$2$
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