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AustraliaNSW
Stage 5.1-3

6.03 Periodicity

Interactive practice questions

Consider the expression $\sin135^\circ$sin135°.

a

In which quadrant is $135^\circ$135°?

First quadrant

A

Second quadrant

B

Third quadrant

C

Fourth quadrant

D
b

What positive acute angle is $135^\circ$135° related to?

c

Is $\sin135^\circ$sin135° positive or negative?

negative

A

positive

B
d

Rewrite $\sin135^\circ$sin135° in terms of its relative acute angle. You do not need to evaluate $\sin135^\circ$sin135°.

Easy
1min

Consider the expression $\tan120^\circ$tan120°.

Easy
1min

Consider the expression $\cos240^\circ$cos240°.

Easy
1min

State whether each of the following are equal to $\cos\theta$cosθ or not.

Medium
1min
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Outcomes

MA5.3-15MG

applies Pythagoras' theorem, trigonometric relationships, the sine rule, the cosine rule and the area rule to solve problems, including problems involving three dimensions

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