In: Advanced Math
For each n ∈ N, let f_n(x) = a_nx + b_n where a_n,b_n are sequences of real numbers. Prove that if f_n → f on [0,1] where f is a function on [0,1], then the convergence is necessarily uniform.
First we find the function f by using the pointwise convergence .then we proceed for uniform convergence of sequence fn.