How do I find the derivative of: y = 2/(2-x)
I know that I will have to take the limit of "(f(x+h) - f(x))/h" as h approaches 0, but the algebra is really confusing me. If anyone could help, that would be much appreciated. Thanks in advance!
How do I find the derivative of: y = 2/(2-x)
I know that I will have to take the limit of "(f(x+h) - f(x))/h" as h approaches 0, but the algebra is really confusing me. If anyone could help, that would be much appreciated. Thanks in advance!
You know that so it should be easy to see that .
Now . You need to get "common denominators" by multiplying both numerator and denominator of the first fraction by 2- x and numerator and denominator of the second fraction by 2- x- h:
Can you finish that?