The value of m such that $\frac{x-4}{1}=\frac{y-2}{1}=\frac{z+\mathrm{m}}{2}$ lies in the plane $2 x-4…
The value of m such that $\frac{x-4}{1}=\frac{y-2}{1}=\frac{z+\mathrm{m}}{2}$ lies in the plane $2 x-4 y+z=7$ is
- 7
- -7
- no real value
- 4
Solution
Point $(4,2,-\mathrm{m})$ should lie in the plane $2 x-4 y+z=7$
$\begin{array}{ll}
\therefore \quad & 2(4)-4(2)-m=7 \\
& \Rightarrow m=-7
\end{array}$
Asked in: MHT CET 2024 (09 May Shift 2)
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