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Evaluate the following expression. cos870° - sin780º =

Evaluate the following expression. cos870° - sin780º =
asked 49.4k views
5 votes
Evaluate the following expression.
cos870° - sin780º =

asked
User Seongkuk Han
by
8.6k points

1 Answer

1 vote

Answer:

-sqrt(3)

Explanation:

Solve each individually

answered
User Jieong
by
8.6k points
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