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f (x)=axa > 0,a ≠ 1),则等式( )成立.

多选题
2022-01-07 02:24
A、<em style="font-family: 'Times New Roman', Times, serif;">f (x/)/f <img class="icon emoticon" alt="是的" title="是的" src="http://shanxi3.ouchn.cn/theme/image.php/blueonionres/core/1635125350/s/yes"> = f (x-y</em>) 
B、<em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">x</em>) ·<em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">y</em>) = <em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">x</em>+<em style="font-family: 'Times New Roman', Times, serif;">y</em>)
C、<em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">x</em>)/<em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">y</em>) = <em style="font-family: 'Times New Roman', Times, serif;">f </em>(<img style="vertical-align: middle;" src="http://openmedia.ouchn.cn/uploads/50459/images/bzlx/1p/01/image020.png" alt="">)
D、<em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em>x</em>)+<em>f </em>(<em style="font-family: 'Times New Roman', Times, serif;">y</em>) = <em style="font-family: 'Times New Roman', Times, serif;">f </em>(<em style="font-family: 'Times New Roman', Times, serif;">x</em>+<em style="font-family: 'Times New Roman', Times, serif;">y</em>)
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正确答案
f (x/)/f 是的 = f (x-y) ###f (x) ·f (y) = f (xy)

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