FUNNY MATH THEORy

[joy1]

1)in mathematics a⁰ =1 , when a not equal to zero. My question is how ' a multiplies 0 times is equal 1"??????

2) vector a - vector a= null vector. What would be its direction?Is that a vector?

3) parameter of a circle is equals pi r ² . why we use pi instead of a constant number 22/7?????

Edited April 30, 2012 by hypervalent_iodine
Superfluous code removed

[JohnStu]

1)in mathematics a⁰ =1 , when a not equal to zero. My question is how ' a multiplies 0 times is equal 1"??????

2) vector a - vector a= null vector. What would be its direction?Is that a vector?

3) parameter of a circle is equals pi r ² . why we use pi instead of a constant number 22/7?????

 

1)the expression a⁰ =1 does not mean a multiply 0 times, but a divides itself one time. a⁰ = a / a = 1

Edited April 30, 2012 by hypervalent_iodine
fixed code in quote

[ajb]

This post should probably be moved into the mathematics section, unless there is a reason why it has been posted here?

 

1)in mathematics a⁰ =1 , when a not equal to zero. My question is how ' a multiplies 0 times is equal 1"??????

 

You can prove that the statement is correct using what you know about the rules of exponents. A quick "google" will give you proofs. See if you can follow one, if not ask further questions here.

 

2) vector a - vector a= null vector. What would be its direction?Is that a vector?

 

The direction is arbitrary. This courses no problems.

 

3) parameter of a circle is equals pi r ² . why we use pi instead of a constant number 22/7?????

 

[math]\pi[/math] has not be chosen by us, rather it is just the way things work out on the plane. The number 22/7 is a reasonable approximation to [math]\pi[/math] for may purposes, but cannot replace it fundamentally.

[hypervalent_iodine]

!

Moderator Note

Agreed. I actually didn't see which forum it had been posted in, so thank you for pointing that out.

Moved to mathematics.

[mathematic]

1)in mathematics a⁰ =1 , when a not equal to zero. My question is how ' a multiplies 0 times is equal 1"??????

2) vector a - vector a= null vector. What would be its direction?Is that a vector?

3) parameter of a circle is equals pi r ² . why we use pi instead of a constant number 22/7?????

 

What do you mean by "parameter" in 3). The expression is for area.

 

pi is a constant number. 22/7 is a simple approximate value, but it is not exact.

[Phi for All]

Where is the "funny"? The title promised me some funny!

[Erudite]

Too Bad...!

[Greg H.]

Where is the "funny"? The title promised me some funny!

 

Unfortunately PfA, in this case I believe that "funny" means "things I don't understand".

 

I too was disappointed.

[Phi for All]

Too Bad...!

You joined and made this your first post, and your username is "Erudite"? That's funny*.

 

Thanks! And welcome!

 

 

 

* Although it would have been funnier, given the section this is in, to have said, "2 Bad", or perhaps "2(Bad)".