inflection f(x)=(5x^2)/(x^2-4)

解答

拐点

f (x) = \frac{5 x ^{2}}{x ^{2} - 4}

无

求解步骤

f^{''} (x) = - \frac{40 ( - 3 x ^{2} - 4 )}{( x ^{2} - 4 ) ^{3}}

Find intervals:

无

无

d o main f (x) = \frac{1}{x ^{2}} - \frac{1}{x}

d i s t an ce (2, 8), (4, 5)

d o main f (x) = ln (x^{2} - 4)

d i s t an ce (4, - 3), (- 2, - 3)

in v erse \frac{6}{7 + x}