3 and 4 .Determinants and Matrices
medium

સમીકરણની સંહતિ $x + y + z = 2$,$3x - y + 2z = 6$ અને $3x + y + z = - 18$ ને . . . . ઉકેલ ધરાવે છે .

A

એકાકી ઉકેલ

B

ખાલીગણ

C

અનંત ઉકેલ

D

માત્ર શૂન્ય ઉકેલ ધરાવે છે .

Solution

(a) Given system of equation can be written as $\left[ {\,\begin{array}{*{20}{c}}1&1&1\\3&{ – 1}&2\\3&1&1\end{array}\,} \right]\,\left[ \begin{array}{l}x\\y\\z\end{array} \right] = \left[ \begin{array}{l}\,\,\,2\\\,\,\,6\\ – 18\end{array} \right]$

On solving the above system we get the unique solution

  $x = -10, \,y = -4,\, z = 16.$

Standard 12
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.