F(x) = 1/ (x times square root (x - 2) ) Understand The Domain of a Function?

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[@Bosnia_Magnetfishing]

I look at functions like Atm machines, and how Money is generated and output. "input credit card output money." good explanation John!

[@argonwheatbelly637]

It's undefined for x in {0,2}; otherwise, you haven't declared only real solutions are desired. How small you've become, Locutus. That said, given the choices in the problem, it's obviously x>2. Takes only seconds.

[@henkhu100]

Why again an error in your video? You say that {R} is the set of real numbers (1:01). That's wrong as you should know as a math teacher. The set of real numbers is R. {R} is a set with just one element: and that element is the set of real numbers. Please stop teaching the wrong things about math. You make too many mistakes.

[@POPOOLAAdebowale]

Thank you so much

[@russelllomando8460]

got it >2 had to be to solve the radical thanks for the fun.

[@mariadelgado4393]

F o g(x)

[@panlomito]

Easypeasy again: x can not be zero and x must be greater than 2.

[@b213videoz]

So x(x-2)½ must not be 0 as it sits in the denominator, so we need to find x where that expression equals to 0 and the answer shall be anything except that x. x(x-2)½ = 0 let's ditch that ½ power by powering both sides to the power of ²: [x(x-2)½]² = 0² x²(x-2) = 0 so we have: 1) x² = 0, meaning x = 0 2) x-2 = 0, wiith x = 2 Ok so as it turned out we have 2 "forbidden numbers" 0 and 2, so answer c) where x > 2 is the right one 😊

[@Serisky621]

I think you should say "x > 2 AND x € R" not "or"

[@rodneymckay8860]

I thought functions were used in Calculus?

[@dhobonov]

Yes, they are. That is why we learn algebra first.

[@POPOOLAAdebowale]

❤

[@pandurangaraonimmagadda9966]

{x/ is greater than 2} ,So answer is (c)

[@terry_willis]

e) None of the above

[@henryupjohn9700]

X>2