could somebody help me please?

hey everyone, im a uni student got a trouble in my c programming class. (T^T)
here's my question








maybe use array or others

1. input two vectors with size 6x1.
a) 1st vector [1 2 3 4 5 6]
b) 2nd vector [2 2 2 2 2 2]

2. user can arbitrarily choose the followiing operations:
1. length
2. Addition
3. inner product

3. print out the results very clear






i'm trying to understand how to figure out clearly array and doing matrice thru c programme. but meanwhile i'm also finishing other assignment. so for emergency i put this out first to get some help in case i dont get spare time(><) thank you very much guys

Can somebody show some work?

Tim S.