Question

If the equation of the plane containing the line x+2y+3z-4=0=2x+y-z+5 and perpendicular to the plane $\vec{r}=(\vec{i}-\vec{j})+\lambda(\vec{i}+\vec{j}+\vec{k})+\mu(\vec{i}-2\vec{j}+3\vec{k})$ is ax+by+cz=4, then (a-b+c) is equal to

• A. 18
• B. 20
• C. 22
• D. 24

Answer 1

Answer: (C)

22

Answer 2

The correct option is(C): 22