MCQ
રેખાઓ માટે $\overrightarrow{a}=(2,3,4), \overrightarrow{l}=(1,1,-k)$ અને $\overrightarrow{b}=(1,4,5),\overrightarrow{m}=(k,2,1).$ રેખાઓ સમાંતલીય છે.
- A$1$
- ✓$3$
- C$2$
- D$4$
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