Complex Conjugates

Find the conjugate of the complex number -3 + (4/5)i.

• -3 - (4/5)i

• 3 - (4/5)i

• 3 + (4/5)i

• -3 + (4/5)i

Tags

CCSS.HSN.CN.A.3

Find the conjugate of the complex number 3 - (2/3)i.

• 3 + (2/3)i

• -3 + (2/3)i

• 3 - (2/3)i

• -3 - (2/3)i

Tags

CCSS.HSN.CN.A.3

Find the conjugate of the complex number 5 - (1/2)i.

• 5 + (1/2)i

• -5 + (1/2)i

• 5 - (1/2)i

• -5 - (1/2)i

Tags

CCSS.HSN.CN.A.3

Find the conjugate of the complex number 7 - 5i.

• 7 + 5i

• -7 + 5i

• -7 - 5i

• 5i - 7

Tags

CCSS.HSN.CN.A.3

Rationalize the denominator by the conjugate and simplify the expression (3 + 2i) / (4 - i).

• 10/17 + 11i/17

• 10/17 - 11i/17

• 14/17 + 11i/17

• 14/17 - 11i/17

Tags

CCSS.HSN.CN.A.3

What is the conjugate of the complex number (1/2) - (3/4)i?

• (1/2) + (3/4)i

• -(1/2) + (3/4)i

• (1/2) - (3/4)i

• -(1/2) - (3/4)i

Tags

CCSS.HSN.CN.A.3

Find the conjugate of the complex number 2 - 3i.

• 2 + 3i

• -2 + 3i

• -2 - 3i

• 3i - 2

Tags

CCSS.HSN.CN.A.3

What is the result of multiplying (3 - 4i) by its conjugate?

• 1

• -1

• 25

• -25

Tags

CCSS.HSN.CN.C.8

What is the result of multiplying (4 - 5i) by its conjugate?

• 1

• -1

• 41

• -41

Tags

CCSS.HSN.CN.C.8

What is the conjugate of the complex number (2/3) + (4/5)i?

• (2/3) - (4/5)i

• -(2/3) + (4/5)i

• (2/3) + (4/5)i

• -(2/3) - (4/5)i

Tags

CCSS.HSN.CN.A.3