Question

Jika Z1 = 1-i dan Z2 = -2+4i Hitung nilai mutlak
a. | 2Z2 - 3Z1 |
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Answer 1

Jawab:

Penjelasan dengan langkah-langkah:

2Z₂ -3Z₁ = 2 (-2 + 4i) - 3 (1-i)

= (-4 + 8i) - (3-3i)

= -7 + 11i

I 2Z₂ -3Z₁I = √{(-7)²+ (11)²}

= √{ 49 + 121}

=√170

Answer 2

Mutlak bilangan imajiner

2.Z2 - 3.Z1 = (-4+8i) - (3-3i)

                  = -4+8i - 3 + 3i

                 = -7+11i

| 2Z2 - 3Z1 | = √(-7)²+(11)²

                   = √49+121

                  = √170 ≈ 13,04