Techniques of Differentiation 2.3 Techniques of Differentiation Mathboat.com
Formulas for Derivatives f(x) & g(x) denote differentiable functions. c,m, and b are real numbers, and n is a rational number. Mathboat.com
proof proof Mathboat.com
Power Rule: proof If n is a positive integer, then we can expand by using the binomial theorem, obtaining n-2 n-1 Mathboat.com
Factor out c inside of the limit proof Factor out c inside of the limit Move c out of the limit Mathboat.com
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Example 1 Mathboat.com
Add and subtract the same expression Product Rule proof Add and subtract the same expression Mathboat.com
Example 2 Use Product Rule Mathboat.com
Add and subtract the same expression Quotient Rule proof Add and subtract the same expression Mathboat.com
Example 3
To prove, use the Quotient Rule with f(x)=1 Reciprocal Rule proof To prove, use the Quotient Rule with f(x)=1 Mathboat.com
Example 4
Power Rule: proof By Reciprocal Rule: Mathboat.com
Example 2 Example 5 Solution Simplify y Use Power Rule Mathboat.com
Example 6 (b) Tangent is horizontal: slope = 0, or numerator = 0 Use Product Rule (b) Tangent is horizontal: slope = 0, or numerator = 0 Tangent is vertical: slope DNE, or denominator =0 Mathboat.com