3) Find sin(s+ t) given that cos s = with s in quadrant I, and sin t = - with t in quadrant IV. 2

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.4: Sum And Difference Formulas
Problem 3ECP: Find the exact value of cosu+v given sinu=1213, where 0u2 and cosv=35, where 2v.
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O Find the exact value of the expression using the provided information.
3) Find sin(s+ t) given that cos s =
with s in quadrant I, and sin t= -
with t in quadrant IV.
2'
Transcribed Image Text:O Find the exact value of the expression using the provided information. 3) Find sin(s+ t) given that cos s = with s in quadrant I, and sin t= - with t in quadrant IV. 2'
Find the exact value by using a half-angle identity.
4) sin 22.5°
Transcribed Image Text:Find the exact value by using a half-angle identity. 4) sin 22.5°
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