y^21-56y 6=cosπ/56得216x21-656a 21212...1

来源：学生作业帮助网编辑：六六作业网时间：2024/11/24 10:24:46

y^21-56y6=cosπ/56得216x21-656a21212...1y^21-56y6=cosπ/56得216x21-656a21212...1y^21-56y6=cosπ/56得216x21

y^21-56y 6=cosπ/56得216x21-656a 21212...1
y^21-56y 6=cosπ/56得216x21-656a 21212...1

y^21-56y 6=cosπ/56得216x21-656a 21212...1
|√18-√x 4^18|或y=-√431/6x