The binomial theorem states that
So in your case you want
Since we know that use this to solve for k and then find the coeffient.
Got stuck on my last practice question and its because I have literally no idea what it is asking me.
The question says:
Find the coefficient of in the expansion of
I Literally have no clue. If someone could try and talk me through this id really appreciate it.
Dont worry about it Plato! If it were my choice I wouldnt be doing these types of questions.
Perhaps a bit of background might help. Im having to do a Maths course at University as it is a required credit to pass out this year. However, maths was not required to be on my course (English Lit!) and at no point have I ever sat a decent level of math before.
Now if you could bear with me in the understanding that I was only introduced to the concept of a "factorial" and a "binomial expansion" in my last lecture then that would be appreciated!