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- Evaluate exactly, with any denominator rationalized.2\cos 30^\circ \tan 30^\circ\sin 45^\circ \cos 45^\circ\tan^2 60^\circ - 1\dfrac{\cos 45^\circ}{\sin 30^\circ}1 - 2\sin^2 30^\circ
- Solve each equation for the acute angle θ, in degrees.2\sin\theta - 1 = 0\sqrt{3}\tan\theta = 34\cos^2\theta = 22\cos\theta = \sqrt{3}4\sin^2\theta - 3 = 0
- Without a calculator, put these five numbers in order from least to greatest.
- Rectangle ABCD has AB = 6 and diagonal AC = 12.
- Evaluate each expression exactly.
- A conveyor belt in a warehouse carries boxes from the floor up to a storage loft.
- Ava redrew the 30-60-90 triangle from memory with sides 1, √(3) and 2, but she put the side 1 opposite the 60° angle and the side √(3) opposite the…
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Trig values of the special right triangles: the lesson ›More Chapter 3 worksheets: Angles, radians and the unit circle
- 3.1Sine, cosine and tangent
- 3.2Trig values of the special right triangles
- 3.3Angles in standard position and coterminal angles
- 3.4Radian measure
- 3.5Arc length and sector area in radians
- 3.6Angular and linear speed
- 3.7Trig functions on the unit circle
- 3.8Sine, cosine and tangent as functions of a real number
- 3.9Reference angles
- 3.10Signs of the trig functions by quadrant
- 3.11Secant, cosecant and cotangent ratios
- 3.12Secant, cosecant and cotangent on the unit circle
- 3.13Exact values on the unit circle
- 3.14Unit circle symmetry and even-odd identities
- 3.15Periodicity and the periodicity identities