limit as x approaches 4 of x^2-3x+2

解答

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

6

求解步骤

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

代入值

x = 4

= 4^{2} - 3 \cdot 4 + 2

化简

= 6

x \to 0 lim (6 x)

d er i v a t i v e tan (e^{9 t}) + e^{t a n (9 t)}

\int t sec^{2} (7 t) d t

\int \frac{3 w - 2}{3 w ^{2} - 4 w + 1} d w

\frac{d}{d x} (x^{2} - 8 x + 9)