Với giá trị nào của thì hệ phương trình sau có số nghiệm cơ bản nhiều nhất $m$ $\left\{\begin{array}{c}x+4y+2z+t=0\\ 2x+7y+3z+4t=0\\ x+5y+3z-t=0\\ x+2y+mz+5t=0\end{array}\right.$

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word that has the underlined part pronounced differently from the rest:

  most               host                 lost               frost

• Choose the word that has the underlined part pronounced differently from the rest:

  sun             sure              success            sort

• Choose the word that has the underlined part pronounced differently from the rest:

  new               sew                few             nephew

• Choose a word that has different stress pattern:

  improvement                engraving              maintenance              spectacular

• Choose a word that has different stress pattern:

  goodbye              hostess                martyr             survey

• Choose a word that has different stress pattern:

  expand            decrease              notify              appoint

• Choose the word that has the underlined part pronounced differently from the rest:  

  rugby          gather         forget          gymnast

• Choose the word that has the underlined part pronounced differently from the rest:  

  throne             there              theory           three

• Choose a word that has different stress pattern:

  dedicate              belong              enlist            impress

• Choose a word that has different stress pattern:

  hotel             museum              commune              apartment