Find the second order derivative?

Dear Student ,

Since :fx=gxf'x=12gx.g'xThe first derivative is:h'x=12x2+1.2x        =xx2+1Since we know:hx=gxfxh'x=g'x.fx-gx.f'xf2xThe second derivative is:h''x=1.x2+1-x.12x2+1.2xx2+12         =x2+1-x2x2+1x2+1         =x2+1-x2x2+1x2+1        =1(x2+1)x2+1

Regards

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