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Lösung 1.1:2d

Version vom 09:59, 11. Mär. 2009 von Tekbot (Diskussion | Beiträge)

If we write x in power form x12 , we see that the square root is a function having the appearance of xn and its derivative is therefore equal to

(x)=ddx

x=ddxx1

2=21x1

2−1=21x−1

The answer can also be written as

(x)=12

since x−12=x12−1=x−1=1x .