6.1.1 Definition & Notation 🔧
6.1.2 Arithmetic Properties 🔧
Constant Rule
$$\sum_{i=1}^n c=c\cdot \sum_{i=1}^n 1=c\cdot n$$
Constant Multiple Rule
$$\sum_{i=1}^n c\cdot f(x)=c\cdot\sum_{i=1}^n f(x)$$
Sum & Difference Rules
$$\sum_{i=1}^n\big(f(x)\pm g(x)\big)=\sum_{i=1}^n f(x)\pm\sum_{i=1}^n g(x)$$
6.1.3 Riemann Sum 🔧
