The number of values of θ (0, π) for which the system of linear equations array l x+3 y+7…
Mathematics · JEE Main · NTA Exams — Matrices and Determinants
The number of values of θ ∈(0, π) for which the system of linear equations
\[\begin{array}{l} x+3 y+7 z=0 \\ -x+4 y+7 z=0 \\ (\sin 38) x+(\cos 28) y+2 z=0 \end{array}\]
has a non-trivial solution, is;
- two
- one
- four
- three
Answer
(D) three
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