SOLUTION: The sine of a 38-degree angle is some number r. Without using a calculator, you should be able to identify the angle size whose cosine is the same number r.
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Question 1155231: The sine of a 38-degree angle is some number r. Without using a calculator, you should be able to identify the angle size whose cosine is the same number r. Found 2 solutions by Alan3354, ikleyn:Answer by Alan3354(69443) (Show Source):
