若锐角a,b满足sina=(√26)/26,tanb=3/2,则tan(a+b)=___.P:tanA+tanB=0Q:tan(A+B)=0 ,则P是Q的___条件.下列等式中对任意数A、B都满足的是:cos2A=2cos²A-1sin2A=2sin²A-1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 05:40:02
![若锐角a,b满足sina=(√26)/26,tanb=3/2,则tan(a+b)=___.P:tanA+tanB=0Q:tan(A+B)=0 ,则P是Q的___条件.下列等式中对任意数A、B都满足的是:cos2A=2cos²A-1sin2A=2sin²A-1](/uploads/image/z/10146610-10-0.jpg?t=%E8%8B%A5%E9%94%90%E8%A7%92a%2Cb%E6%BB%A1%E8%B6%B3sina%3D%28%E2%88%9A26%29%2F26%2Ctanb%3D3%2F2%2C%E5%88%99tan%28a%2Bb%29%3D___.P%EF%BC%9AtanA%2BtanB%3D0Q%EF%BC%9Atan%28A%2BB%29%3D0+%2C%E5%88%99P%E6%98%AFQ%E7%9A%84___%E6%9D%A1%E4%BB%B6.%E4%B8%8B%E5%88%97%E7%AD%89%E5%BC%8F%E4%B8%AD%E5%AF%B9%E4%BB%BB%E6%84%8F%E6%95%B0A%E3%80%81B%E9%83%BD%E6%BB%A1%E8%B6%B3%E7%9A%84%E6%98%AF%3Acos2A%3D2cos%26%23178%3BA-1sin2A%3D2sin%26%23178%3BA-1)
x){ѽ /OJIz{m3m5u2272)IK57y1HNҴxgPQH8BN
f|>܅Ovo{ik;c;
^6*9H)[X;Rp!"}J|֏Q~$c`MX|E;]
!$ف 6
若锐角a,b满足sina=(√26)/26,tanb=3/2,则tan(a+b)=___.P:tanA+tanB=0Q:tan(A+B)=0 ,则P是Q的___条件.下列等式中对任意数A、B都满足的是:cos2A=2cos²A-1sin2A=2sin²A-1
若锐角a,b满足sina=(√26)/26,tanb=3/2,则tan(a+b)=___.
P:tanA+tanB=0
Q:tan(A+B)=0 ,则P是Q的___条件.
下列等式中对任意数A、B都满足的是:
cos2A=2cos²A-1
sin2A=2sin²A-1
若锐角a,b满足sina=(√26)/26,tanb=3/2,则tan(a+b)=___.P:tanA+tanB=0Q:tan(A+B)=0 ,则P是Q的___条件.下列等式中对任意数A、B都满足的是:cos2A=2cos²A-1sin2A=2sin²A-1
(1) 7/17
(2)充要条件