limit as x approaches 6 of 7x+|x-6|

解答

x \to 6 lim (7 x + ∣ x - 6 ∣)

42

求解步骤

x \to 6 lim (7 x + ∣ x - 6 ∣)

代入值

x = 6

= 7 \cdot 6 + ∣ 6 - 6 ∣

化简

7 \cdot 6 + ∣ 6 - 6 ∣ : 42

= 42

d er i v a t i v e sin (cos (7 x))

\frac{d y}{d x} = - \frac{x}{y e ^{x^{2}}}

a re a y = x^{2} - 1.52, y = - x^{2} + 1.52

\frac{d}{d x} (cos (x y^{2}))

x \to 0 lim (x + y)