f{-x}=2sin(- x )+ (-x)³ +1
=-2sinx-x³ +1
=-(2sin x + x³ +1 )+2
=-f{x}+2
f{a}=3,则
f{-a}=-f{a}+2=-3+2=-1
【数学辅导团】为您解答,如果本题有什么不明白可以追问,
f{-x}=2sin(- x )+ (-x)³ +1
=-2sinx-x³ +1
=-(2sin x + x³ +1 )+2
=-f{x}+2
f{a}=3,则
f{-a}=-f{a}+2=-3+2=-1
【数学辅导团】为您解答,如果本题有什么不明白可以追问,