In the coefficient of is .
This means the coefficent here is:
EDIT: Wrong answer. Also, it should be and not .
I need a bit of help with a problem. I am pretty sure I know what formula I should use, I just don't know how.
I think I need to use but I am not sure. Any help would be great! I have already looked thought the book and there isn't any other problems of this sort that I can find, and this book does not have a students solution manual.Find the coefficient of in the expansion of
The formula (called the multinomial theorem) is correct, but its application to your specific question needs tweaking: you have rather than and rather than .....
Think about the small changes that will make to the answer given by TPH.
I got it!
Thank you guys so much, I finally understand this. Now I just wish you guys were here to help me go over my notes and help me study Oh well. Thank you. I will be coming back when I need help with things, this is a lot better help than I get from other people.