limit as x approaches-2-of (x+5)/(x+4)

解答

x \to - 2 - lim (\frac{x + 5}{x + 4})

\frac{3}{2}

十进制

1.5

求解步骤

x \to - 2 - lim (\frac{x + 5}{x + 4})

代入值

x = - 2

= \frac{- 2 + 5}{- 2 + 4}

化简

= \frac{3}{2}

\frac{d}{d x} ((x^{2} - 9)^{\frac{2}{3}})

\int (3 x^{2} + 2 x - 3) d x

n = 1 \sum \infty \frac{9}{( n + 1 ) !}

t an g e n t f (x) = 8 x^{2}, at x = 10

\int \frac{5 - x ^{2}}{x ^{2}} d x