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Question

limx(2x+1)40(4x1)5(2x+3)45

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Solution

We have,

limx(2x+1)40(4x1)5(2x+3)45

Degree of polynomial in numerator and denominator is same and it is 45

Divide of numerator and denomiantor by x45

limx(2x+1)40(4x1)5x45(2x+3)45x45

limx(2x+1x)40(4x1x)5(2x+3x)45

limx(2+1x)40(41x)5(2+3x)45

=240×45245

=240×210245=25=32


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