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Question Number 117037 by bemath last updated on 09/Oct/20
limx→∞x+x+x−x=?
Answered by Lordose last updated on 09/Oct/20
12
Answered by bobhans last updated on 09/Oct/20
limx→∞x+x+x−x=limx→∞x(1+x+xx)−x=limx→∞x[1+1x+1x3−1]=letx=1torx=1t2wheret→0limt→01+t2+t6−1t=limt→011+t2+t6+1×limt→0t2+t6t=12×limt→0t1+t2t=12×1=12
Answered by Dwaipayan Shikari last updated on 09/Oct/20
Generallylimx→∞x+x+x−xx+x+x+x=x(1+1x)x((1+1x+1x)+1)=12
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