Question

1) if np3 = 1320, then the value of'n' is a) 11 b) 10 c) 12 d) 13 2) if 18c5+18c6=nc13 then n = a) 19 b) 20 c) 18 d) 24 3) (-5)!= a) 0 b) 120 c) -120 d) does not exist 4) if 'a' and 'b' are the respective coefficients of'x^m' and 'x^n' in the expansion of (1+x)^m+n, then a) a+b=m+n b) a=2b c) a=b d) b=2a ​

Answer 1

Answer:

20

Step-by-step explanation:

so the question is 18C5 ghost answer js 20 because

Answer 2

Answer:

answer is 19

i hope this answer help you