← back to the guide

HSC Mathematics Advanced trigonometric functions quiz

14questions. Pick an answer and you'll see why right away.

  1. What is 5π6\frac{5\pi}{6} radians expressed in degrees?

  2. A sector of a circle has radius 6 cm and subtends an angle of π3\frac{\pi}{3} radians at the centre. What is the area of the sector?

  3. What is the exact value of cos(2π3)\cos\left(\frac{2\pi}{3}\right)?

  4. What is the period of the function y=4sin(3x)+2y = 4\sin(3x) + 2?

  5. The graph of y=2cos(xπ4)+1y = 2\cos\left(x - \frac{\pi}{4}\right) + 1 has which features?

  6. If sinθ=35\sin\theta = \frac{3}{5} and θ\theta is in quadrant 2, what is cosθ\cos\theta?

  7. How many solutions does the equation 2sinθ1=02\sin\theta - 1 = 0 have for 0θ2π0 \leq \theta \leq 2\pi?

  8. Solve sin2θ=sinθ\sin 2\theta = \sin\theta for 0θ2π0 \leq \theta \leq 2\pi.

  9. Which expression equals secθ\sec\theta?

  10. The depth of water at a jetty is modelled by d(t)=5+2sin(π6t)d(t) = 5 + 2\sin\left(\frac{\pi}{6}t\right) where dd is in metres and tt in hours after midnight. What is the maximum depth, and when does it first occur?

  11. Which of these is an equivalent form of cos2θ\cos 2\theta?

  12. Simplify sin2θ1cosθ\frac{\sin^2\theta}{1 - \cos\theta} for cosθ1\cos\theta \neq 1.

  13. What is the range of y=3cos(2x)4y = 3\cos(2x) - 4?

  14. Solve tanθ=1\tan\theta = -1 for 0θ2π0 \leq \theta \leq 2\pi.