Main content

Precalculus

Course: Precalculus > Unit 2

Lesson 10: Using trigonometric identities

Finding trig values using angle addition identities
Using the tangent angle addition identity
Find trig values using angle addition identities
Using trig angle addition identities: finding side lengths
Using trig angle addition identities: manipulating expressions
Using trigonometric identities
Trig identity reference
Trigonometry: FAQ

Find trig values using angle addition identities

Find sine, left parenthesis, start fraction, 19, pi, divided by, 12, end fraction, right parenthesis exactly using an angle addition or subtraction formula.
[Hint: This diagram of special trigonometry values may help.]

(Choice A)
start fraction, minus, square root of, 6, end square root, minus, square root of, 2, end square root, divided by, 4, end fraction
(Choice B)
start fraction, square root of, 2, end square root, minus, square root of, 6, end square root, divided by, 4, end fraction
(Choice C)
start fraction, square root of, 2, end square root, plus, square root of, 6, end square root, divided by, 4, end fraction
(Choice D)
start fraction, square root of, 6, end square root, minus, square root of, 2, end square root, divided by, 4, end fraction

Stuck?

Precalculus

Course: Precalculus > Unit 2

Problem