find the values of the following in surd form by using the double angle formula.
1)sec15°
2)tan22.5°
3)csc67.5°
4)sin195°
5)cos202.5°
6)cot525°
trigonometric formulae
2010-08-22 2:01 am
回答 (1)
2010-08-22 9:55 am
收錄日期: 2021-04-22 00:54:04
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