Question about properties of sums and products

In summary, the conversation discusses the validity of certain properties and the request for examples or counterexamples. The conversation also touches on the use of "if ... then" structures and basic definitions of variables in different mathematical contexts.
  • #1
MAGNIBORO
106
26
Hi and sorry for bad english.I want to know if these properties are truehttps://gyazo.com/88c471f4bb9989b67a390c372f2c72fe

and

https://gyazo.com/85f4110664db6831576012debaf3a778 I did not find these properties in any place.
so I guess it will be obvious or are incorrect,
if incorrect I would like to see counterexamples.
thanks
 
Last edited by a moderator:
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  • #2
Can you write these properties using an "if ... then" structure and not use the word "so"?

Also, can you write basic definitions of ##a##, ##b##, ##f## and so on? Are we working in the real numbers? Or a general vector space? Or?
 
  • #3
micromass said:
Can you write these properties using an "if ... then" structure and not use the word "so"?

Also, can you write basic definitions of ##a##, ##b##, ##f## and so on? Are we working in the real numbers? Or a general vector space? Or?
a and b are any whole numbers (or infinity) , f(i), g(i),t(i),b(i) are any functions of i
 
Last edited:
  • #4
For the first case, it isn't always true.
The Sum of x between 1 and 0 is 1, and the sum of x^2 between 1 and 0 is also one. We can generalise this to x^n where n is real and not equal to 0, this would produce the same answer between [0,1]
 

Related to Question about properties of sums and products

What are the properties of sums and products?

The properties of sums and products refer to the rules or characteristics that govern the addition and multiplication of numbers. These properties include commutative property, associative property, distributive property, and identity property.

What is the commutative property of addition and multiplication?

The commutative property states that the order of the numbers does not affect the result when adding or multiplying. For example, 3 + 5 = 5 + 3 and 3 x 5 = 5 x 3.

What is the associative property of addition and multiplication?

The associative property states that the grouping of the numbers does not affect the result when adding or multiplying. For example, (3 + 5) + 2 = 3 + (5 + 2) and (3 x 5) x 2 = 3 x (5 x 2).

What is the distributive property?

The distributive property states that when multiplying a number by the sum of two or more numbers, the result is the same as multiplying the number by each individual number and then adding the products. For example, 3 x (5 + 2) = (3 x 5) + (3 x 2).

What is the identity property of addition and multiplication?

The identity property states that the sum of any number and 0 is equal to the number itself, and the product of any number and 1 is equal to the number itself. For example, 5 + 0 = 5 and 5 x 1 = 5.

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