Recent content by samer88

Homework Statement let f be the function defined in the region |z|<1 , by f(z)=z^5. prove that f is uniformly continuous in |z|<1...where z is a complex number Homework Equations The Attempt at a Solution

thnx clementc

Homework Statement if f and g are two continuous functions and f+g is differentiable...are f and g differentiable? if not give a counter example! Homework Equations The Attempt at a Solution

no it is the derivative

Homework Statement determine the derivative of f(x,y,z)=(x^2-2xy+z,y^2+z^2) directly from the definition where f:R^3------->R^2 Homework Equations The Attempt at a Solution

thnx all but i didnt get the good answer yet ! i need four non-trivial factors

Homework Statement express z^7 + 1 as a product of four non-trivial factors and given that z is a complex number Homework Equations The Attempt at a Solution