berapa hasil dari (2-i).(-3+2i).(5-4i)
Matematika
seronoy
Pertanyaan
berapa hasil dari (2-i).(-3+2i).(5-4i)
1 Jawaban
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1. Jawaban SyifaDindaF
(2.-3) + (2.2i) + (-i. (-3)) + (-i.2i)
= -6 + 4i + 3i + (-2i^2) x (5-4i)
= (-6.5) + (-6.(-4i)) + (4i.5) + (4i.(-4i)) + (3i.5) +
(3i.(-4i)) + (-2i^2.5) + (-2i^2.(-4i))
= -30 + 24i + 20i + (-16i) + 15i + (-12i) + (-10i^2) + (8i^2)
= -30 + 24i + 4i + 3i + (-2i^2)
= -30 + 31i + (-2i^2)
Maaf, kalo salah