in calculus what is the short cut to find the domain of any function?

Answer 1

there's no shortcut really. Please post a question up so we can attend to it

Answer 2

The domain is the range of numbers that it is legal to put as values of x.

for example, f(x) = x^2 has a domain of all real numbers or (-inf, inf)

whereas g(x) = 1 / (x-2) has a domain of all real numbers excluding x=2

and h(x) = sqrt(x) has a domain of (0,inf) ie all positive numbers. (that is if you want the results to be real in the range).

Answer 3

The shortcut would be to peek over at the smart kid's paper that sits across from you.