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Using appropriate sketches determine the direction of the intersection of the following planes: (110) and (101)

do I need to actually draw out these planes, then find 2 vectors for each. take the cross product, then use the lines perpindicular to the planes to find th edirection? Or can i simply use the planes to get the cross product?

[tex]

\begin{array}{*{20}c}

i & j & k \\

1 & 1 & 0 \\

1 & 0 & 1 \\

\end{array}

[/tex]