4) If cos25° = 0.9063, then sin65° =_0.906____. Explain the reasoning used to answer these two questions

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4) If cos25° = 0.9063, then sin65° =_____0.906________. Explain the reasoning used to answer these two questions

asked Apr 27, 2021 129k views

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Jeph · Answer 1 · 2021-05-01T03:40:12+0000

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Explanation:

The sine of an angle is equal to the cosine of that angle minus 90 degrees, and vice versa. Since 65=90-25, the cosine of 25 is equal to the sin of 65. If this is unclear please PM me or comment, and I can help more!

4) If cos25° = 0.9063, then sin65° =_0.906____. Explain the reasoning used to answer these two questions

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