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Mathematics with calculus mac301. Course information Intro to Differentiation Review of year 12 skills Assignment 1. . Differentiation by Sight. Differentation. Derivative/ derived function/ gradient function f ’(x)=nax n-1 dy/dx=nax n-1. Function f(x)=ax n y= ax n.
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Mathematics with calculus mac301 Course information Intro to Differentiation Review of year 12 skills Assignment 1.
Differentiation by Sight Differentation • Derivative/ derived function/ gradient function • f ’(x)=naxn-1 • dy/dx=naxn-1 • Function • f(x)=axn • y= axn • To differentiate is to find the equation of the gradient function of any curve. • Gradients describe the instantaneous rate of change • The process of finding the derivative is called differentiation. • Functions that can be differentiated are said to be differentiable.
Differentiation Review • Powers of x y = x3 y = x • Coefficients y = 4πx3 • Constant terms y=5 • Multiple terms y = x10-7x+5 • Products y=x2(2x7-6) • Quotients • Negative indices y = 3/x 7 • Surds/ fractional indices NB: The convention is to give answers in the same form as the question.
Exercise 3.1C A1 (page 15) Differentiate the following functions: 1 2 3 4
5 6 7 8 9 10
1 Differentiate 11 11 11 ─ 1 = 10 x
2 Differentiate 3 2 3 ─ 1 = 3 x ─ 9
3 Differentiate 2 1 2 + 1 x + x + 1
6 Differentiate Write in index form:
7 Differentiate Expand Simplify
8 Differentiate Expand Simplify
9 Differentiate Divide through by (Multiply each term in the numerator by )
10 Differentiate Divide through by (Same as multiplying by )