2022英语周报高二57答案

10c由题意得:2=,所以T=5,又T=2x,且0>0,所以4,所以f(x)=in(4x+p),所以g(x)=sn(4x+x),因为函数y=g(x)是偶函数,所以9+47=kx+39个x一,k∈Z,因为12所以=,所以fx)=sm(4=4),g(x)=sn(4x+2x)cs4x,令4x-=km,k∈Z得x=+,k∈2,当k中0时,x=,故A正确;令4x一=kx+,∈乙得:x=4x+,k∈Z,当k=一1时,x=故B正确;因为f(-)=sn(12)=sin(-32,故C不正确:因为f(x)+g(x)=sin(4x4)+√cos4x=2(six+cos4x)=sn(4x+),其最大值为1,故D正确故选C

书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

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