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OpenStudy (anonymous):
f(x)= x, if x is even, 2x,if x is odd What is the value of f(8) + f(9) ?
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OpenStudy (amoodarya):
f(8)=8 because 8 is even f(9)=2(9) =18 because 9 is odd so the answer is 8+18
OpenStudy (amoodarya):
now you return my question f(f(9)) =?
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