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命题1 函数f(x)=Asin(wx+φ)(A>0,w>0,x∈R)为奇函数的充要条件是证明因为f(x)为奇函数所以f(x)+f(-x)=0
Proposition 1 The necessary and sufficient condition for the function f(x)=Asin(wx+φ)(A>0, w>0, x∈R) to be an odd function is to prove that f(x) is an odd function so f(x)+ f(-x)=0