Operations with Imaginary Numbers

What letter usually represent imaginary number?

• a
• i
• j
• x

Tags

CCSS.HSN.CN.A.1

What is the "real part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

Tags

CCSS.6.EE.A.2B

What is the "imaginary part" of the complex number (-2+7i)?

• 2

• -2

• 7i

• -7i

Tags

CCSS.6.EE.A.2B

Simplify
2i - 7i + 10

• -5i+10
• 5i
• 9i+10
• 5i+10

Tags

CCSS.7.EE.A.1

i(2+5i)

• -5+2i
• 5-2i
• 7i
• 2i+5i

Tags

CCSS.HSA.APR.A.1

(2+3i)(4-2i)

• 14+8i
• 48+16i
• 12-8i
• 2-8i

Tags

CCSS.HSA.APR.A.1

Which of the following is equivalent to

(5-3i)+(-6+2i)?

• -1-5i

• -1-i

• 11-i

• -30-6i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

Which of the following is equivalent to (3-5i)-(6+2i)

• -3-7i
• -3-3i
• 3-3i
• 9-7i

Tags

CCSS.HSA.APR.D.7