1.
 |
= |
derivative of y with respect to x |
 |
= |
derivative of y with respect to u |
 |
= |
derivative of u with respect to x |
2. The chain rule states that the derivative of f(g(x)) is f'(g(x))⋅g'(x). In other words, it helps us differentiate *composite functions*.
3. Chain Rule: If h(x) = f(g(x)), then h (x) = f (g(x)) · g (x).
