limx→∞(2x+1)40(4x−1)5(2x+3)45
We have,
limx→∞(2x+1)40(4x−1)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(4x−1)5x45(2x+3)45x45
limx→∞(2x+1x)40(4x−1x)5(2x+3x)45
limx→∞(2+1x)40(4−1x)5(2+3x)45
=240×45245
=240×210245=25=32