Skip to main content\(\require{cancel}\newcommand{\definiteintegral}[4]{\int_{#1}^{#2}\,#3\,d#4}
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The planes
\(x+y+z=0\) and
\(2x-y+z=0\) are shown in
\(\mathbb{R}^3\text{.}\) The planes intersect in a line passing through the origin.
