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math problem

分类: 作业答案 • 2022-01-09 18:02:21

问题描述：

math problem
sinX(1-cosX)^2 + cosX(1-sinX)^2 =2
Thanks!

答

是解方程吧?
设sin x 为a,cos x 为 b
a^2+b^2=1
a(1-b)^2+b(1-a)^2=2
然后再解方程就差不多了
具体我也不太会解

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不动生色这词的解释
浦东新区2007学年度第二学期期末质量测试初二语文、和2008

math problem

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