Evaluate each expression. 10!, 12!/6!, 5(4!0, 10!/7!3!

Question

 How do you evaluate these expressions

 

Answer 1

Hi Yancie,

 

You are dealing with factorials. ! after an integer number means that multiply all the integers less than or equal to the number ending at 1. 

 

Then, 10! = 10*9*8*7*6*5*4*3*2*1

12!/6! = 12*11*10*9*8*7*6! / 6! = 12*11*10*9*8*7   (6!s cancel out)

 

Did you get the idea? Can you answer the rest?