Now, I think, Beta distribution will be helpfull if I can transform the power series into function of x (or function of (1-x)). I'd be grateful if you can give me an idea. Thanks in advance.
Thank you everyone!! I am very grateful for all your answers and your suggestions.
Dear Paul,
Of course, your answer correct. I do not know how to express my thanks. Thank you very much for giving the wonderful answer which is very important for me.
In fact, I have an another question and I dont know if using the power series will be helpful or another transformations should be done to solve these integrations that, shown in attached image ? Thanks in advanced.