Prove that f is continuous - Let f: R-> R be a function that satisfies f(x+y) = f(x) + f(y) for all x,y in R.
Suppose that f is continuous at some point c. Prove that f is continuous on R.
How would you go about starting ...
Suppose that f is continuous on [a,b], f(z) < 0, and f (b) > 0. - Suppose that f is continuous on [a,b], f(z) < 0, and f (b) > 0. Set z = sup{x: f (t) < 0 for all t contained in [a, x]}. Prove that f (z) = 0. This is key to the proof of the intermediate value the ...
real analysis - let g(x)= cube root of x or x^1/3
a- prove that g is contious at c=0
b-prove that g is continous at a point c not=0.(the identity a^3-b^3=(a-b)(a^2+ab+b^2) will be helpful)
Proving that f is not uniformly continuous - The following theorem could be used to write the proof.
A theorem states that if d:D-->R is uniformly continuous on D iff the following
condition is satisfied:
If un and vn are both sequences in D ...
Continuity and Sequential Limits - Respected Sir / Madam,
I need each and every step. please explain me in detail.
In page 529 Theorem III.(I need proof). Text Book:- Taylor & Menon
Theorem: - Prove that Any Bounded subset of ...