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# IB Maths. Power rule

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### IB Maths. Power rule

1. 1. http://animoto.com/play/hVIw4sOG1tEL3hYONxJyJQ
2. 2.   http://www.calculus­help.com/funstuff/phobe.html
3. 3. f '(x)= The process of finding the derivative is called  differentiation. http://www.ies.co.jp/math/java/calc/doukan/doukan.html http://www.ima.umn.edu/~arnold/calculus/differential/differential­g.html
4. 4. Differentiate the function from first principles. y = x 2 ­ 6x
5. 5. Derivatives By the end of the lesson you will be able to: • Find the derivatives of functions of the form      y= axn . • Find the derivative of the sum or difference     of functions.
6. 6. Last lesson we calculated some derivatives: y = x3 y' = 6x  y=3x2  +1 y' = 3x2 y = x2 y' = an x n­1 y = a xn
7. 7. y = x6 y = 5x4 y = 5 The derivative of a constant is zero.
8. 8. then
9. 9.
10. 10.
11. 11. Book page 114: Ex 4C