Checkpoint 1 of 3 Covers Lessons 1–5

Checkpoint 1: Unit Circle, Reciprocal Functions & Identities

Test your understanding of the unit circle, reciprocal trig functions, and Pythagorean identities.

Multiple Choice

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Short Answer

1. Find the exact value of $\sin(\frac{5\pi}{6})$. (2 marks)

2. If $\sin\theta = \frac{3}{5}$ and $\frac{\pi}{2} < \theta < \pi$, find $\sec\theta$. (2 marks)

3. Simplify $\dfrac{1}{1-\sin^2\theta}$. (1 mark)

4. Find the exact value of $\sin(75°)$. (3 marks)