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Bilangan Kompleks

Authored by INDRARINI IRAWATI

Mathematics

University

Used 92+ times

Bilangan Kompleks
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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Selesaikan

(2+3i)+(4−5i)=\left(2+3i\right)+\left(4-5i\right)=  ....

6−2i6-2i  

2−6i2-6i  

−2+8i-2+8i  

8−2i8-2i  

2.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Selesaikan

(2+3i)(4−5i)=\left(2+3i\right)\left(4-5i\right)=  ...

8−10i8-10i  

8−13i8-13i  

23+2i23+2i  

−7+2i-7+2i  

3.

FILL IN THE BLANKS QUESTION

1 min • 5 pts

Tentukan bilangan imajiner dari bilangan kompleks z= 2+ 2i

(a)  

4.

FILL IN THE BLANKS QUESTION

1 min • 5 pts

tentukan bagian reel bilangan kompleks Z= 5i

(a)  

5.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Media Image

Perhatikan gambar yang tersedia. Bilangan kompleks yang disajikan pada gambar adalah ....

z = 2 -3i

z = 2 + 3i

z = 3 + 2i

z = - 3 - 2i

z = - 3 + 2i

6.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Diberikan bilangan kompleks z1=1+iz_1=1+i dan z2=12−2iz_2=\frac{1}{2}-2i maka hasil dari z1×z2z_1\times z_2 adalah . . . .

(12,32)\left(\frac{1}{2},\frac{3}{2}\right)

(−12,34)\left(-\frac{1}{2},\frac{3}{4}\right)

(52,−32)\left(\frac{5}{2},-\frac{3}{2}\right)

(34,−52)\left(\frac{3}{4},-\frac{5}{2}\right)

(32,−12)\left(\frac{3}{2},-\frac{1}{2}\right)

7.

MULTIPLE CHOICE QUESTION

5 mins • 5 pts

Media Image

Manakah dari pilihan berikut yang merupakan representasi dari bilangan kompleks

4 − 3i pada bidang Kartesius di atas?

z1

z2

z3

z4

z5

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