x1+x2+x3+x4+x5=21 such that
0<=x1<=3, 1<=x2<4 and x3>=15
the ans is 106… whn x4 and x5 are >=0
Answer is 106.
is there nothing mentioned about x4 and x5?
x4 and x5 are greater than or equal to 0
ok i did a calc mistake!! letme correct
Can you please explain why the answer should be equal to the coefficient of y^5?