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New Zealand
Level 8 - NCEA Level 3

Operations with Negative Surds

Interactive practice questions

$-\sqrt{81}$81 is a real number. True or false?

True

A

False

B

True

A

False

B
Easy
Less than a minute
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$\sqrt{-16}$16 is a real number. True or false?

Express $\sqrt{-100}$100 in terms of $i$i.

Express $-\sqrt{-100}$100 in terms of $i$i.

Outcomes

M8-9

Manipulate complex numbers and present them graphically

91577

Apply the algebra of complex numbers in solving problems

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