First slide
Functions (XII)
Question

Iffxisanoddfunction,f1=3,andfx+2=fx+f2,thenthevalueoff3is ______

Moderate
Solution

Givenfx+2=fx+f2Putx=-1.Thenf1=f-1+f2orf1=-f1+f2asfxisanoddfunctionorf2=2f1=6Now,putx=1Wehavef3=f1+f2=3+6=9.

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