f(a)-f(-a)
=3a²-1-[3(-a)²-1]
=3a²-1-3a²+1
=0
設(shè)函數(shù)f(x)=3x2-1,則f(a)-f(-a)的值是
設(shè)函數(shù)f(x)=3x2-1,則f(a)-f(-a)的值是
數(shù)學(xué)人氣：336 ℃時(shí)間：2019-12-08 01:06:37
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