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Question

limx x2+2x+32x2+x+53x-23x+2

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Solution

limx x2+2x+32x2+x+53x-23x+2=limx 1+x2+2x+32x2+x+5-13x-23x+2=limx 1+x2+2x+3-2x2+x+52x2+x+53x-23x+2=limx 1+-x2+x-22x2+x+53x-23x+2=elimx-x2+x-22x2+x+5×3x-23x+2 =elimx-1+1x-2x22+1x+5x2×3-2x3+2x =e-12×1=1e

Disclaimer: The solution given in the book is incorrect. However, the solution given here has been created according to the question given in the book.

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