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 Yearling
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Aug
28
revised Does $\frac{x}{x}=1$ when $x=\infty$?
added 3 characters in body
Aug
28
answered Does $\frac{x}{x}=1$ when $x=\infty$?
Aug
21
revised Division by $0$
restructure the argument
Aug
6
comment Do I have to use “a” or “an” before letters?
In short @Rhjg all the rules of English grammar still apply :-)
Aug
6
comment Do I have to use “a” or “an” before letters?
Yes it does play the same role here.
Aug
6
revised What does “percent of change” mean?
added 74 characters in body
Aug
4
awarded  Yearling
Aug
3
revised What is the accepted syntax for a negative number with an exponent?
added 59 characters in body
Aug
3
revised What is the accepted syntax for a negative number with an exponent?
added 179 characters in body
Aug
3
revised What is the accepted syntax for a negative number with an exponent?
added 95 characters in body
Aug
3
answered What is the accepted syntax for a negative number with an exponent?
Apr
27
comment role of definitions in proofs
Definitions do not, as you say, "define objects." Instead, as any dictionary shows, they define the words we use for objects. Where they come from would be a matter of accepted convention.
Apr
24
comment Could somebody please help me prove this using the properties of real numbers introduced in elementary algebra?
Is it logically correct to state "1 is its own reciprocal because 1 * 1 = 1." And to prove this by the identity property of multiplication: a * 1 = a? Given that we know, by definition, reciprocals are two numbers whose product is 1.
Apr
24
suggested rejected edit on Could somebody please help me prove this using the properties of real numbers introduced in elementary algebra?
Apr
24
comment Is an empty parenthesis a valid mathematical expression?
Short answer: no.
Apr
24
comment Could somebody please help me prove this using the properties of real numbers introduced in elementary algebra?
In the equation 1/1 = 1 the right hand side is called a fraction in simplest form. Does that mean all the integers are fractions in simplest form? But a ratio in simplest form must be n/1 for n = integer?
Apr
23
revised Infinity isn't a Number
deleted 1 character in body
Apr
23
accepted Infinity isn't a Number
Apr
23
revised what is the definition of Mathematics ?
added 52 characters in body
Apr
23
revised How to simplify this square $(3 \times 4 + 2)^2$?
added 115 characters in body