Question

What is domain of a function? and how can we find it?

Answer 1

The domain of a function is the set of number x for which a function f(x) is defined.
Say for example the function is f(x)=1/x-2
You should know that you cannot 1/0. So therefore x cannot = 2. x however, can be bigger or smaller than 2. Therefore the domain for this example is "all real numbers except for 2"

Answer 2

\[f(x)=\frac{ 1 }{ x-2 }\] There is the example in a clearer form.

Answer 3

ok thank you so much but how can we write it mean all real number except 2

Answer 4

x∈R: x≠2
x∈R means that x is all real numbers, x≠2 means x cannot equal 2
However the notation "All real numbers except for 2" should also be accepted.

Answer 5

ok thank you so much

Answer 6

No problem

Answer 7

this website helps in calculus do you know about any website which can help in programming?

Answer 8

@Ghazal1
Click on "Find More Subject" on top. They have a "Computer Science" section.

Answer 9

ok thank you