limit as x approaches infinity+of x^{10}

解答

x \to \infty + lim (x^{10})

\infty

求解步骤

x \to \infty lim (x^{10})

运用无穷大属性:

x \to \pm \infty lim (a x^{n} + \dots + b x + c) = \infty, a > 0,

n is even

a = 1, n = 10

= \infty

\frac{\partial}{\partial x} (\frac{1}{cos ^{2} ( x )})

\int x 3 x^{2} - 1 d x

\int x^{3} - \frac{4}{3 x} + \frac{9}{x} + 6 e^{x} d x

in v erse l a pl a ce \frac{1}{( s ^{2} - 9 )}

\frac{d y}{d x} + 2 x^{2} y = 11 x^{2}