Question

If a and b are the respective coefficients of x^m and x'^n in the expansion of (1+x)^m+n
1) a+b=m+n 2) a = 2b 3) a=b 4) b=2a
I will mark as Brainlist​

Answer 1

Answer:

hsgfddgcstg

Step-by-step explanation:

gzfhvcdghggftuugggghgggfdddfxxxxxxcxxccxxxxyz

etc

Answer 2

Step-by-step explanation:

this is the answer u can ask me anything on MPC I will tell answers