Trigonometric functions of obtuse angles
Types of exercises: functions of an obtuse angle, expressions with functions of the angles 120°, 135° and 150°.
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Compute
tan 135° − 2 · sin 150°
Compute
24 · tan 135°
Compute
2 · cos 150° + 2 · sin 120°
Compute
7 · sin 135°
Compute
4 · sin 120° · cos 120°
Compute
2 · cos 120°
Compute
2 · sin 120° − 2 · cos 150°
Give the value
cos 120°
Compute
tan² 150° − cos 120°
Compute
13 · sin 120°
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