Matematik Tambahan SPM 2023, Kertas 2 (Soalan 1 & 2)

Soalan 1:Selesaikan persamaan serentak berikut: $$ \begin{gathered} 2 p-q-r=6 \\ p+2 q-4 r=8 \\ 3 p+q-r=2 \end{gathered} $$ [5 markah]Penyelesaian:$$ \begin{aligned} &\begin{aligned} & 2 p-q-r=6 \ldots(1)\\ & p+2 q-4 r=8 \ldots(2) \\ & 3 p+q-r=2 \ldots .(3) \end{aligned}\\ &\text { Dari (2), } p=8-2 q+4 r \ldots \text { (4) } \end{aligned} $$$$ \begin{aligned} &\text … Read more