The Chain Rule

MathsDirect

Example 1
Differentiate w.r.t. x
		First define u
		Differentiate the two expressions separately
		Multiply the two results together. Substitute u back in.

Example 2
Differentiate w.r.t. x
		By re-arranging, you can see the form of the expression more clearly.
		Define u.
		Differentiate the expressions separately.
		Multiply the results together. Substitute u back in.

Example 3
Differentiate w.r.t x		Go to Differentiation of Trig Functions
		Define u.
		Differentiate the expressions separately.
		Multiply the results together. Substitute u back in.

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