> 数学 >
cosπ/5 - cos2π/5 怎样变成 cosπ/5 + cos2π/5
rt
人气:164 ℃ 时间:2020-10-01 03:03:52
解答
cosπ/5 - cos2π/5 = 0.5
cosπ/5 + cos2π/5 ≈1.1180
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版