limit as y approaches-3 of 4y^2+4y+1

解答

y \to - 3 lim (4 y^{2} + 4 y + 1)

25

求解步骤

y \to - 3 lim (4 y^{2} + 4 y + 1)

代入值

y = - 3

= 4 (- 3)^{2} + 4 (- 3) + 1

化简

4 (- 3)^{2} + 4 (- 3) + 1 : 25

= 25

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

p a r t ia l f r a c t i o n \frac{x ^{2}}{x ^{2} + 1}

f^{^{'}} x = (2 x) (x^{4} - 8 x) + (x^{2}) (4 x^{3} - 8)

d er i v a t i v e y = \frac{6 t - 3}{5 t + 8}

x \to \frac{π}{2} lim (sin (\frac{x}{2}))