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6 men with their wives ( total of 12 ) in how many ways can they sit in a circular table but no man sits beside his wife ? needs smart people cheers abc

6 men with their wives ( total of 12 ) in how many ways can they sit in a circular table but no man sits beside his wife ? needs smart people cheers abc

hey all i have some doubts 1. does inertia depend on body's speed 2. why is it difficult to break an egg when it is hold in a specific position

do u mean this n! = n(n-1 ) (n-2 ) ...... 3*2*1

dear matt as u said i have just today studied the factorial at class ... and when the teacher explained the definition of ...then said that 0!=1 ... it was weird to me and i didn't have the time to ask him about it ... so if u would explain ... please start from the zero ... so i could...

i really didn't understand that ... could u please reexplain it in an easier way ... and i will be so thankful to u cheers abc

hellooooooooooo everybody ! can anyone please prove the following : 0! = 1 cheers abc

thanx all for replying ... regard abc

thanx HallsofIvy ... but the answer written in the book is 4.05 ( but i don't know the steps to bring this answer ) dear locrian... do u mean this >>>> sum F= 0 ? thanx guys ... but please continue to solve this problem

a = 5.4 Newton >>>> i think it is not clear in the attachment ?

can anyone help me in this problem ? see the attachment please

smalest cell ? what is the smallest cell in the human's body ? regards abc

2 questions ... 1- solve : 5 > x^2 >= -9 : x belongs to R ---------------------------------------------- 2- solve : cos (x+30) - sin (2x) = 0 45 >= x >= 0 ---------------------------------------------- thanx regards abc

solve : a^3+b^3+c^3 = 495 a+b+c = 15 abc = 105 thanx regards abc

can anyone prove this : a^2+b^2+c^2 ( is greater or equal to ) ab + ac + bc thanx regards abc