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Question

The value of the limx0x+2sinxx2+2sinx+1xsin2x+1is


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Solution

Finding the value of limx0x+2sinxx2+2sinx+1xsin2x+1:

Calculate the limit:

limx0x+2sinxx2+2sinx+1xsin2x+1=limx0(x+2sinx)x2+2sinx+1+x+cos2xx2+2sinx+1x+cos2x=limx0x+2sinxx2+2sinx+1+x+cos2xx2+2sinx+1+1x+sin2x1=limx0x+2sinxx2+2sinx+1+x+cos2xx2x+2sinx+sin2x=limx0x+2sinxxlimx0x2+2sinx+1+x+cos2xlimx0x2+2sinxx+sinx×sinxx=1+21+101+2+0=6

Therefore, the value of limx0x+2sinxx2+2sinx+1xsin2x+1is 6


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