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Mathematics 9 Online
OpenStudy (anonymous):

f(x+y)=f(x).f(y) find f(-x)

OpenStudy (anonymous):

Does the dot mean multiply?

OpenStudy (anonymous):

yes

hero (hero):

f(-x+y) = f(-x)*f(y)

OpenStudy (anonymous):

i've asked find f(-x)

hero (hero):

Okay, well, there's only one last step

hero (hero):

f(-x+y) = f(-x)*f(y) f(-x+y)/f(y) = f(-x)

hero (hero):

What's the matter amir? You don't like my solution?

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