Question #678

# What is the formula for computing the derivative of the composition of two functions (chain rule)?

The chain rule is a formula that expresses the derivative of the composition of two differentiable functions ﻿﻿ and ﻿﻿.

The derivative of ﻿﻿ is:

﻿﻿

The chain rule of ﻿﻿ in Langrage's notation is: ﻿﻿ or ﻿﻿.

The chain rule of ﻿﻿ in Leibniz's notation is: ﻿﻿ .

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