Question: find the exact value using the double angle identities (please show work!) 1. If sin0 = and 0 4 1. If sinO= and 5 3.

find the exact value using the double angle identities (please show work!)

4 1. If sinO= and 5 3. If coso= and 8 find

1. If sin0 = and 0

4 1. If sinO= and 5 3. If coso= and 8 find sin20. 2 37t find sin20. 2

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