Question

prove that 0! is equal to 1!

Answer 1

-20  =  -20

16-36  =  25-45

4square - 4.9  =  5square - 5.9

4square-2.4*81/4  =  5square-5.9+81/4

4square-2.4*9/2+(9/2)square = 5square-2.5*9/2+(9/2)square

(4-9/2) (4-9/2)  =  (5-9/2) (5-9/2)

(4-9/2)square  = (5-9/2)square

4-9/2  =  5-9/2

(-9/2 cancels)

4  =  5

adding both sides with -4

4-4  =  5-4

0  =  1

there you go

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