📝 Piecewise Defined Limits

Q1. For piecewise-defined functions, at a point where the formula changes, how should you find the two-sided limit?

💡 Difficulty: easy | ✅ Correct: B

Q2. For \(f(x)=\begin{cases} x^2+1, & x<0 \\ 1-x, & x\ge 0 \end{cases}\), what is \(\lim_{x\to 0} f(x)\)?

💡 Difficulty: medium | ✅ Correct: B

Q3. For \(f(x)=\begin{cases} \frac{1}{x+2}, & x<-2 \\ x^2-5, & x\ge -2 \end{cases}\), what is \(\lim_{x\to -2^-} f(x)\)?

💡 Difficulty: hard | ✅ Correct: B