Hi, this is the first time I use this forum. Please let me know if my questions already have been gone throw. Today I have two simple questions: 1.       How to conduct polynomial division in a fast, easy and clickable way?

please help me here:

how can i integrate, say for example f(x) = cos(x), n times. means. how to find?

int(...int(int(int(cos(x),x),x),x)..,x)

thanks