First slide
Functions (XII)
Question

Iffx=xcosx+loge1-x1+x;x0a;x=0isodd,thena=  __________

Moderate
Solution

Forx0,fx=xcosx+loge1-x1+xf-x=-xcos-x+loge1+x1-x=-xcosx-loge1-x1+x=-fxForx=0,wemusthavef-x=-fxa=-aa=0

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