(ax + by) (cx + dy) = px² +qxy + ry²
Matematika
pieterse
Pertanyaan
(ax + by) (cx + dy) = px² +qxy + ry²
1 Jawaban
-
1. Jawaban redwstar
(ax + by) (cx + dy) = px² +qxy + ry²
[tex]ac {x}^{2} + adxy + bcxy + bd {y}^{2} = p {x}^{2} + qxy + r {y}^{2} \\ ac {x}^{2} + (ad + bc)xy + bd {y}^{2} = p {x}^{2} + qxy + r {y}^{2} [/tex]
jadi ac=p
(ad+bc)=q
bd=r