若函数f(x)=sin(wx+阿发)+cos(wx+阿发)(w>0,绝对值阿发

来源：学生作业帮助网编辑：作业帮时间：2024/05/05 03:32:33

x��RMJ�@��,S2�t��"�BA ��E��ba��Z5bQ+��j�D�x��W��3�Մ.\�f�y��7��p��>��h�Ղd��G�X5#/��G��st48�N,/.�K��?kd��?I~�F0mh+d^�C��4��仓&�2�ld��B��rR��f��)U^�)�7ő:C�s��} N��s�*�э��N��)T��G�]a� |ل�?�;�ѱ�eؾ��5:g�nQ,[��eh �`��t��ă�8��mؿ�F��l)VS�� U��Aktg��~^��a�b��oу��s+�T��bA�`m�

若函数f(x)=sin(wx+阿发)+cos(wx+阿发)(w>0,绝对值阿发
若函数f(x)=sin(wx+阿发)+cos(wx+阿发)(w>0,绝对值阿发

若函数f(x)=sin(wx+阿发)+cos(wx+阿发)(w>0,绝对值阿发
f(x)=sin(wx+阿发)+cos(wx+阿发)
=√2 [√2∕2 sin(wx+阿发) + √2∕2 cos(wx+阿发) ] （提取√2,根号2）
=√2 [cos45°sin(wx+阿发) + sin45° cos(wx+阿发) ]
=√2 sin(wx+阿发+45°)
=√2 cos(wx+阿发- 45°) （因为和偶函数有关,化为余弦比较好）
∵最小正周期为π,所以w=2,
又因为f(x)为偶函数,coswx本身是偶函数,所以,
(阿发- 45°)=2kπ,k为整数,最简形式为当k=0时,此时f(x)=√2cos2x

若函数f(x)=sin(wx+阿发)+cos(wx+阿发)(w>0,绝对值阿发已知函数f(x)=sin(wx+φ)(w 函数f(x)=sin(wx+φ)(w>0,|φ| 已知函数f(x)=sin(wx+φ)(w 函数f(x)=sin(wx+φ)(w>0,|φ| 函数f(X)=sin(wx+φ)(w>0,|φ| 已知函数f(x)=sin(wx+φ)(w 已知函数f(X)=sin(Wx+&)(W>0,0 设函数f(x)=sin(wx+t)(-π/2 设函数f(x)=sin(wx+t)(-π/2 设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ| 设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ| 设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ| 设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ| [非常急]已知函数f(x)=根号3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=根号3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=√3sin(wx+φ)-cos(wx+φ)(0 老师好：设函数f(x)=sin(wx+φ)+cos(wx+φ)(w>0,|φ|