Oblicz granice Lo.: a)lim x→0 arctg2x/arctg3x b)lim x→∞ 4*3^x−1+8*5^x+2+4/8*3^x+7*5^x−1 c)lim n→∞ 9n²+3n−1/(2n−1)²+(3n−5)² d)lim x→∞ ln(1+4^x)/ln(1+3^x) e)lim x→∞ 3^x+3−6*4^x+4/6*3^x+7*2^2x−14 f) lim n→∞4n²+5n−7/10(n−3)²+3(n−5)² g) lim x→∞ 2^2x+1+7*5^x+2−14/2*4^x+7*5^x−3+24 h) lim n→∞ (n−1)²+(2n−4)²/4n²+2n−1 i) lim x→∞0 sinx+sin2x/sin4x j) lim x→∞ 2^x+5+7*3^x+2−34/5*2x−16*5⁻³+15 k) lim n→∞ (4n−1)²+(n−5)²/10n²+3n−5