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Express each of the following in terms of a reference angle. Explain, please. 1a. sin 45º 1b. 135º 1c. sin 225º 1d. sin 315º 3a. cos 224.5º 3b. cos 658º 3c. 145.7º 3d. sin (-201º)
asked
May 15, 2017
Mathematics
high-school
1
answer
1
vote
17.7k
views
Evaluate each function
asked
Oct 7, 2015
Mathematics
high-school
2
answers
5
votes
166k
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