Question

Ребят,помогите пожалуйста,15 вариант

Answer 1

1) lim(3x^2+5x-4) = 3*3^2 +5*3-4 = 38
x->3
2)
$frac{5 times {2}^{2} - 2 times 2 + 9}{4 times {2}^{2} - 8 } = frac{25}{8}$
3) =
$( frac{0}{0} ) = lim frac{27 {x}^{2} + 2x}{4 {x}^{3} + 9 {x}^{2} - 4x } = ( frac{0}{0} ) = lim frac{54x + 2}{12 {x}^{2} + 18x - 4} = - frac{1}{2}$

4)
$frac{ - 2 times {0.5}^{2} + 7 times 0.5 - 3 }{2 times 0.5 - 1} = ( frac{0}{0} ) = lim frac{ - 4x + 7}{2} = frac{ - 4 times 0.5 + 7}{2} = frac{5}{2} .$
5)
$frac{20 - 20 times 2 + 5 times 2 ^{2} }{ {2}^{3} - 8 } = ( frac{0}{0} ) = lim frac{ - 20 + 10x}{3 {x}^{2} } = frac{ - 20 + 10 times 2}{3 times 4} = 0$
6)
$= ( frac{0}{0} ) = lim frac{ frac{1}{2 times (2x + 1)} times 2}{1} = limfrac{1}{2x + 1} = frac{1}{7}$
7) =
$frac{0}{0} = limfrac{cos13x times 13}{1} = 13$