Related Angles and Identities (HSC SSCE Mathematics Advanced): Quizzes

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Related Angles and Identities
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In which quadrant does an angle of 150°150° lie?

Quadrant 2

What is the formula for the related angle of θ\theta in Quadrant 4?

360°−θ360° - \theta

According to the ASTC rule, which trig functions are positive in Quadrant 2?

Only sine

In Quadrant 3, which trig ratios are negative?

sin⁡θ\sin \theta and cos⁡θ\cos \theta

What is cos⁡(180°−A)\cos(180° - A) equal to?

−cos⁡A-\cos A

Using negative angle identities, what is sin⁡(−θ)\sin(-\theta) equal to?

−sin⁡θ-\sin \theta

To which angle between 0°0° and 360°360° is 750°750° equivalent?

30°30°

What is the sign of sin⁡θ\sin \theta in Quadrant 4?

Negative

Which trig function is even (unchanged for negative angles)?

Cosine

What is the related angle for 210°210°?

30°30°

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