limit as x approaches 0 of (x-7)/(3x+4)

解答

x \to 0 lim (\frac{x - 7}{3 x + 4})

- \frac{7}{4}

十进制

- 1.75

求解步骤

x \to 0 lim (\frac{x - 7}{3 x + 4})

代入值

x = 0

= \frac{0 - 7}{3 \cdot 0 + 4}

化简

= - \frac{7}{4}

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