Question

problem:
find the derivative using the limit method
y=square root of 4-x

Answer 1

\[\sqrt{4-x}\]

Answer 2

and show ur solution

Answer 3

write the expression in the form (4 - x)^(1/2)

limit as h --> 0 is (4+h - x)^1/2 - (4 - x)^1/2
-----------------------
h

you'll need to use the binomial theorem to expand terms in the numerator