Question

How do i find restrictions on variables?? Help?!?!?

Answer 1

u manipulate some values in the governing equation and u will see, some values in some variables will give u undefined or imaginary values. that are restricted.

Answer 2

for instance



if u put x=0 u will get some undesired results so x=0 is restricted

Answer 3

So i just put random numbers in for x and if the answer doesnt make sense, then its restricted?

Answer 4

no no, u just look at the equation.

Answer 5

another example



if u put x>3 in the equation what will happen, u keep getting imaginary values