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2cos2x cos2x 2sin2x sin2x
E^*Sin(30*3.14/180)*2*X/X+Y*Log( Exp(*Sin(30)*2*X/(X+*Ln( Exp(*Sin(30*3.14/180)*2*x/(x+*Log( Exp(*Sin(30*3.14/180)*2*X/(X+*Ln(
定义域是[-1,1] 是偶函数 值域是[-sin 1,sin 1] 不是周期函数
E^*Sin(30*3.14/180)*2*X/X+Y*Log(X) Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*Log(x) Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
¬p:∃x0∈R,sin x0≥1 ¬p:∀x∈R,sin x≥1 ¬p:∃x0∈R,sin x0>1 ¬p:∀x∈R,sin x>1
p:存在x∈R,x p:任意x∈R,x≤sin x p:存在x∈R,x≤sin x p:任意x∈R,x
E^*Sin(30*3.14/180)*2*X/X+Y*Log(X) Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) Exp(x)*Sin(30*3.14/180)*2*x/(x+y)*Log(x) Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(X)
f(x+π)=sin x f(2π-x)=sin x f(π-x)=-f(x)
E^*Sin(30*3.14/180)*2*X/X+Y*Log(X) Exp(X)*Sin(30)*2*X/(X+Y)*Ln(X) Exp(X)*Sin(30*3.14/180)*2*x/(x+y)*Log(x) Exp(X)*Sin(30*3.14/180)*2*X/(X+Y)*Ln(x)