The set of equations
\[
\begin{array}{l}
\lambda x-y+(\cos \theta) z=0 \\
3 x+y+2 z=0 \\
(\cos \... VIDEO
The set of equationshttps://bit.ly/YTAI_PWAP https://www.pw.live
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\[
\begin{array}{l}
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\[
\begin{array}{l}
\lambda x-y+(\cos \theta) z=0 \\
3 x+y+2 z=0 \\
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\[
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