(1/2)三角形ABC的对边为abc,且sin(派4+A)=7根号2/10(0
问题描述:
(1/2)三角形ABC的对边为abc,且sin(派4+A)=7根号2/10(0
答
(1/2)三角形ABC的对边为abc,且sin(派4+A)=7根号2/10(0
(1/2)三角形ABC的对边为abc,且sin(派4+A)=7根号2/10(0
(1/2)三角形ABC的对边为abc,且sin(派4+A)=7根号2/10(0