What would you like to do?
1 factorial is equal to 1?
1 milliliter equals one cubic centimeter.
What is the rationale for defining 0 factorial to be 1? Answer The defining 0 factorial to be 1 is not a rationale. "Why is zero factorial equal to one?" is …a problem that one has to prove. When 0 factorial to be 1 to be proved, the defining 0 factorial to be 1 is unvaluable. One has only one general primitive definition of a factorial number: n! = n x (n-1) x (n-2) x (n-3) x ... x 2 x 1. After that zero factorial denoted 0! is a problem that one has to accept by convention 0!=1 as a part of definition. One has to prove zero factorial to be one. Only from the definition of a factorial number and by dividing both sides by n one has: n!/n (n-1)! or (n-1)! = n!/n when n=2 one has (2-1)! = 2!/2 or 1! = 2x1/2 or 1! = 1 when n=1 one has (1-1)! = 1!/1 or 0! = 1/1 or 0! = 1. = This is a proof that zero factorial is equal to one to be known. But a new proof is: A Schema Proof Without Words That Zero Factorial Is Equal To One. n! = ...Explanation of n!... ... ... ... 6! = 720 = 1×76 -6×66 +15×56 -20×46 +15×36 -6×26 +1×16 5! = 120 = 1×65 -5×55 +10×45 -10×35 + 5×25 -1×15 4! = ..24 = 1×54 -4×44 + 6×34 - 4×24 + 1×14 3! = ....6 = 1×43 -3×33 + 3×23 - 1×13 2! = ....2 = 1×32 -2×22 + 1×12 1! = ....1 = 1×21 -1×11 0! = ...... = 1×10 ........... 0! = 1×10 = 1×1 = 1 Conclusion 0! = 1 Now the expression 0! = 1 is already a proof, not need a definition nor a convention. So the defining 0 factorial to be 1 is unvaluable. The proof "without words" above that zero factorial is equal to one is a New that: *One has not to accept by convention 0!=1 anymore. *Zero factorial is not an empty product. *This Schema leads to a Law of Factorial. Note that the above schema is true but should not be used in a formal proof for 0!=1. The problem arises when you simplify the pattern formed by this schema into a MacLauren Series, which is the mathematical basis for it in the first place. Upon doing so you arrive with, . This representation illustrates that upon solving it you use 0!. In proofs you cannot define something by using that which you are defining in the definition. (ie) 0! can't be used when solving a problem within a proof of 0!. For clarification, the above series will represent the drawn out solution for the factorial of a number, i. (ie) 1×76 -6×66 +15×56 -20×46 +15×36 -6×26 +1×16 , where i=6.
1+1= a window 1+1=2
No, they are different systems. 1 litre is 1.0567 US quart.
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it may be 1 or 2 or 11 .as you do not clear your quest en
1 factorial = 1
they are about the same
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No. CFH is a capacity rating of pipe (natural gas), representing Cubic Feet per Hour. PSI is a pressure unit: Pounds(force) per Square Inch. The pressure will affect how fast …the gas flows.
This is actually quite easy to prove. The Taylor series of the exponential function, e^x (using "^" for power) is 1 + x^1/1! + x^2/2! + x^3/3! + x^4/4! ..., so all you need to… do is replace the exponent "x" by 1. (To be precise, you would also have to prove that the corresponding Taylor series is correct - that means proving that the residual tends towards zero. This is the case for most commonly used functions, but it must still be proven for individual cases such as this one.)