limx→∞x+2sinxx2+2sinx+1−sin2x−x+1
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=limx→∞x+2sinxx2+2sinx+1−sin2x+x−1×(x2+2sin+x+1+sin2x−x+1)
=limx→∞x+2sinxx2+2sinx−sin2x+x×(2)
Applying L’H Rule
=limx→∞2(1+2cosx)2x+2cosx−2sinxcos+1=2(3)2+1=2