Question

1) statement (A).: if n! =24,then n=4. statement (B) : if 15c2r-1=15c2r+4 then r=3. a) both a and b are true b) both a and b are false c) a is true and b is flase d) a is flase and b is true

2) statement (A) : 1!+2!+3!+4!+5!=153. statement (B) : the number of terms in the expansion of (x+b)^n is n+1. a) both a and b are true b) both a and b are false c) a is true and b is flase d) a is flase and b is true​

Answer 1

Answer:

2 answer is correct .....

Answer 2

Answer:

2) is the correct answer.