化简sin²a×cos²a-cos²a×sin²a+cos²a-coa²a
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 04:30:08
![化简sin²a×cos²a-cos²a×sin²a+cos²a-coa²a](/uploads/image/z/1786475-11-5.jpg?t=%E5%8C%96%E7%AE%80sin%26%23178%3Ba%C3%97cos%26%23178%3Ba-cos%26%23178%3Ba%C3%97sin%26%23178%3Ba%2Bcos%26%23178%3Ba-coa%26%23178%3Ba)
x){3<5eCsӓl]tmPMR>M/`~qAbȁ +Le
化简sin²a×cos²a-cos²a×sin²a+cos²a-coa²a
化简sin²a×cos²a-cos²a×sin²a+cos²a-coa²a
化简sin²a×cos²a-cos²a×sin²a+cos²a-coa²a
sin²a×cos²a-cos²a×sin²a+cos²a-coa²a=0