Real and Complex Numbers-BSEK-Class 9

A non-ending, non-repeating decimal is which type of number?

• Rational 

• Irrational

• Natural

• None of these

Tags

CCSS.8.NS.A.1

Whole numbers are natural numbers together with ______.

• 1

• -1

• 0

• none of these

Tags

CCSS.6.NS.C.5

• i

• -i

• 1

• -1

Tags

CCSS.HSN.CN.A.2

• 1

• i

• -1

• -i

Tags

CCSS.HSN.CN.A.2

What is the simplified form of (-6i)(3i)

• -18

• -18i

• 18

• -18i²

Tags

CCSS.HSN.CN.A.2

Tags

CCSS.HSN.CN.A.2

Simplify:
-3i(4 + 2i)

• 6 - 12i

• 6 + 12i

• -12i - 6i²

• -12i + 6i²

Tags

CCSS.HSN.CN.A.2

Simplify: (-7+6i)²

• 49+36i

• 85

• 13-84i

• 13+84i

Tags

CCSS.HSN.CN.C.8

Tags

CCSS.HSN.CN.A.3

What is the conjugate of the complex number: 4-3i?

• A.  1/(4-3i)

• B. 1/(4+3i)

• C.  -4 + 3i

• D.  4 + 3i

Tags

CCSS.HSN.CN.A.3