考研數(shù)學(xué)必備函數(shù)圖像大全(編輯修改稿)
2025-05-01 04:49 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 $是公式的標(biāo)記符,切換到公式版(安裝mathplayer)就看不到$了sin(a)=sin(a) cos(a)=cos(a)$sin(pi/2a)=cos(a)$$cos(pi/2a)=sin(a)$$sin(pi/2+a)=cos(a)$$cos(pi/2+a)=sin(a)$$sin(pia)=sin(a)$$cos(pia)=cos(a)$$sin(pi+a)=sin(a)$$cos(pi+a)=cos(a)$ $sin(a+b)=sin(a)cos(b)+cos(α)sin(b)$$cos(a+b)=cos(a)cos(b)sin(a)sin(b)$$sin(ab)=sin(a)cos(b)cos(a)sin(b)$$cos(ab)=cos(a)cos(b)+sin(a)sin(b)$$tan(a+b)=(tan(a)+tan(b))/(1tan(a)tan(b))$$tan(ab)=(tan(a)tan(b))/(1+tan(a)tan(b))$ $sin(a)+sin(b)=2sin((a+b)/2)cos((ab)/2)$$sin(a)?sin(b)=2cos((a+b)/2)sin((ab)/2)$ $cos(a)+cos(b)=2cos((
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