我认为 =DEGREES(ASIN(0.5))asin(0.5)返回sinX=0.5中的X弧度值然后用DEGREES()函数转换成度数。所以回答cosA=0.7767的A=DEGREES(ACOS(0.7767))具体可以看这里的教程 http://www.alisoho.com
=DEGREES(ASIN(0.5))asin(0.5)返回sinX=0.5中的X弧度值然后用DEGREES()函数转换成度数。所以回答cosA=0.7767的A=DEGREES(ACOS(0.7767))