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List of top Mathematics Questions on Linear Algebra asked in AP ECET

If \( A = \begin{pmatrix} 2 & x + 9 \\ 1 & 2x \end{pmatrix} \) is invertible, then \( x \neq \):
  • AP ECET Ceramic Tech - 2025
  • AP ECET Ceramic Tech
  • Mathematics
  • Linear Algebra