Find the Cartesian equation of the plane ( vec{r}.(2 hat{i}+ hat{j}- – McqOptions

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1.	Find the Cartesian equation of the plane ( vec{r}.(2 hat{i}+ hat{j}- hat{k}) )=4.
A.	x+y-z=-4
B.	2x+y-z=4
C.	x+y+z=4
D.	-2x-y+z=4
Answer» C. x+y+z=4

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