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1 / 10

Time

Score

Relationship Between The Complex Conjugate And The Modulus

Let z1=9+i, z2=2+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{82}{5}}$ .

True

False

Is the sentence true or false?
Let z₁=3+i, z₂=1+i, |z₁z₂|= $2\sqrt{5}$ .

True

False

Is the sentence true or false?
Let z₁=5i, z₂=4i, then, |z₁z₂|=20.

True

False

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{\frac{7}{46}}$

$\sqrt{\frac{58}{37}}$

$\sqrt{\frac{21}{46}}$

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{246}$

$\sqrt{3146}$

$\sqrt{2146}$

Let z₁=2+3i, z₂=1+i, then calculate, |z₁z₂|.

$2$

$25$

$\sqrt{26}$

Let $z1=3+i$ , $z2=1+i$ , $\left|\frac{z1}{z2}\right|=\sqrt{5}$ .

True

False

Is the sentence true or false?
Let z1=2+3i, z2=1+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{13}{2}}$ .

True

False

Let $z1=7+i$ , $z2=4+i$ , $\left|z1z2\right|=2\sqrt{7}$ .

True

False

Is the sentence true or false?

Let z₂=5z₁, are complex numbers.
Then, |z₁/z₂|=5.

True

False

Questions

Time

Score

Relationship Between The Complex Conjugate And The Modulus

Let z1=9+i, z2=2+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{82}{5}}$ .

True

False

Is the sentence true or false?
Let z₁=3+i, z₂=1+i, |z₁z₂|= $2\sqrt{5}$ .

True

False

Is the sentence true or false?
Let z₁=5i, z₂=4i, then, |z₁z₂|=20.

True

False

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{\frac{7}{46}}$

$\sqrt{\frac{58}{37}}$

$\sqrt{\frac{21}{46}}$

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{246}$

$\sqrt{3146}$

$\sqrt{2146}$

Let z₁=2+3i, z₂=1+i, then calculate, |z₁z₂|.

$2$

$25$

$\sqrt{26}$

Let $z1=3+i$ , $z2=1+i$ , $\left|\frac{z1}{z2}\right|=\sqrt{5}$ .

True

False

Is the sentence true or false?
Let z1=2+3i, z2=1+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{13}{2}}$ .

True

False

Let $z1=7+i$ , $z2=4+i$ , $\left|z1z2\right|=2\sqrt{7}$ .

True

False

Is the sentence true or false?

Let z₂=5z₁, are complex numbers.
Then, |z₁/z₂|=5.

True

False

Incorrect

Great!

Questions

Time

Score

Relationship Between The Complex Conjugate And The Modulus

Let z1=9+i, z2=2+i, ﻿∣z1z2∣\left|\frac{z1}{z2}\right|∣∣​z2z1​∣∣​﻿=﻿825\sqrt{\frac{82}{5}}582​​﻿.

True

False

Is the sentence true or false?Let z1=3+i, z2=1+i, |z1z2|=﻿252\sqrt{5}25​﻿.

True

False

Is the sentence true or false?Let z1=5i, z2=4i, then, |z1z2|=20.

True

False

Let z1=7+3i, z2=6+i, then calculate, |z1z2|.

﻿746\sqrt{\frac{7}{46}}467​​﻿

﻿5837\sqrt{\frac{58}{37}}3758​​﻿

﻿2146\sqrt{\frac{21}{46}}4621​​﻿

Let z1=7+3i, z2=6+i, then calculate, |z1z2|.

﻿246\sqrt{246}246​﻿

﻿3146\sqrt{3146}3146​﻿

﻿2146\sqrt{2146}2146​﻿

Let z1=2+3i, z2=1+i, then calculate, |z1z2|.

﻿222﻿

﻿252525﻿

﻿26\sqrt{26}26​﻿

Let ﻿z1=3+iz1=3+iz1=3+i﻿, ﻿z2=1+iz2=1+iz2=1+i﻿, ﻿∣z1z2∣=5\left|\frac{z1}{z2}\right|=\sqrt{5}∣∣​z2z1​∣∣​=5​﻿.

True

False

Is the sentence true or false?Let z1=2+3i, z2=1+i, ﻿∣z1z2∣\left|\frac{z1}{z2}\right|∣∣​z2z1​∣∣​﻿=﻿132\sqrt{\frac{13}{2}}213​​﻿.

True

False

Let ﻿z1=7+iz1=7+iz1=7+i﻿, ﻿z2=4+iz2=4+iz2=4+i﻿, ﻿∣z1z2∣=27\left|z1z2\right|=2\sqrt{7}∣z1z2∣=27​﻿.

True

False

Is the sentence true or false?Let z2=5z1, are complex numbers.Then, |z1/z2|=5.

True

False

Incorrect

Great!

Let z1=9+i, z2=2+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{82}{5}}$ .

Is the sentence true or false?
Let z₁=3+i, z₂=1+i, |z₁z₂|= $2\sqrt{5}$ .

Is the sentence true or false?
Let z₁=5i, z₂=4i, then, |z₁z₂|=20.

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{\frac{7}{46}}$

$\sqrt{\frac{58}{37}}$

$\sqrt{\frac{21}{46}}$

Let z₁=7+3i, z₂=6+i, then calculate, |z₁z₂|.

$\sqrt{246}$

$\sqrt{3146}$

$\sqrt{2146}$

Let z₁=2+3i, z₂=1+i, then calculate, |z₁z₂|.

$2$

$25$

$\sqrt{26}$

Let $z1=3+i$ , $z2=1+i$ , $\left|\frac{z1}{z2}\right|=\sqrt{5}$ .

Is the sentence true or false?
Let z1=2+3i, z2=1+i, $\left|\frac{z1}{z2}\right|$ = $\sqrt{\frac{13}{2}}$ .

Let $z1=7+i$ , $z2=4+i$ , $\left|z1z2\right|=2\sqrt{7}$ .

Is the sentence true or false?

Let z₂=5z₁, are complex numbers.
Then, |z₁/z₂|=5.