1.求函数y=sinx+(根号3乘cosx)的周期,最值.2.在三角形ABC中,已知tanA,tanB是方程3x?2-7x+2=0的两个实根,则tanC等于多少?3.已知函数f(x)=2sinx(sinx+cosx) 求f(x)的最小正周期?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 04:38:57
![1.求函数y=sinx+(根号3乘cosx)的周期,最值.2.在三角形ABC中,已知tanA,tanB是方程3x?2-7x+2=0的两个实根,则tanC等于多少?3.已知函数f(x)=2sinx(sinx+cosx) 求f(x)的最小正周期?](/uploads/image/z/4070331-27-1.jpg?t=1.%E6%B1%82%E5%87%BD%E6%95%B0y%3Dsinx%2B%EF%BC%88%E6%A0%B9%E5%8F%B73%E4%B9%98cosx%EF%BC%89%E7%9A%84%E5%91%A8%E6%9C%9F%2C%E6%9C%80%E5%80%BC.2.%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E4%B8%AD%2C%E5%B7%B2%E7%9F%A5tanA%2CtanB%E6%98%AF%E6%96%B9%E7%A8%8B3x%3F2-7x%2B2%3D0%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%A0%B9%2C%E5%88%99tanC%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F3.%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3D2sinx%28sinx%2Bcosx%29+%E6%B1%82f%28x%29%E7%9A%84%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%3F)
xݒn@_k\=*Hzޜ
lrD*&)jsFy'^5y?JNK'`ܙVߖַH3sjl~ֈL0ވ+s'?EC\ (Ό_{bHy]7zv1aU7끘0oɨQDF1Y=$S$^H!tv!М09|SW_Z/UeX;ιbnp `pz R'}Ƽ&W^%xY[ ĭH pܘۥbDbx3ʳ"zDKt
kmMh>E$F>&^Hzj*/!} tYp~-& MwlL3zt̑iLddiwp,|J!hp