All Maths Lovers, Must Read

[mastermindh]

Hello and Assalamualaikum,
All Maths Lovers and Nonlovers!

Prove it if you can
0!=1
The proof must be genuine, authentic and valid....

 

[scouserlfc]

hey whats this ! abt is this in the proving thing,if u tell me ill try because i think u just wrote it.

 

[Anon]

! is factorial

Solution:
1! = 1
2! = 1x2 = 2
3! = 1x2x3 = 6
4! = 1x2x3x4 = 24

We can also write it as below :

4! = 4(4-1)! = 4(3)! = 4(6) = 24
3! = 3(3-1)! = 3(2)! = 3(2) = 6

In the above the number (whose factorial is to be calculated) is being multiplied by the factorial of the number below it.
and hence we get its factorial, above is pretty obvious.

Now the main thing is that we can also make a formulae for the step above:

n! = n(n-1)!

Factorial of 1 is 1

So

1! = 1(1-1)!
1! = 1(0!)

1 = 0! <<< Proved

 

[scouserlfc]

Hey whats a factorial Anon can I know :ugeek:

 

[Anon]

Factorial of a number is that it is multiplied by all the numbers below it

factorial of 7 would be 7x6x5x4x3x2x1
so instead of writing all this we simply write 7!

In probability theory, a! is the number of permutations for a number of a objects
Its also in binomial

 

[scouserlfc]

Thanks man for telling me.This is Add maths by the way am I right :?: :?:

 

[Anon]

Yep, factorial comes in Add Maths

 

[scouserlfc]

Okay thanks/