Question

give me conceptt nd defination of domain and range in two variable function ?????????

Answer 1

Domain means the set of all possible x values that would make sense. ie. equation y=x+2. x can take on any value. y=square root x, x can only be 0 or all positive numbers.
Range means the set of all y values that could be generated if you used all those possible x values. ie. y=x+2, the range is all real numbers. y = square root x, the range is 0 and all positive numbers.

Answer 2

what is domain of
f(x,y)=ln(x2-y2) ?

Answer 3

???????????? helo

Answer 4

what does a ln graph look like

Answer 5

no idea ?

Answer 6

go find out that first, and tell me where ln graph is undefined

Answer 7

okx

Answer 8

defined at ln(x)>0

Answer 9

ok good

Answer 10

so ln(something) where something has to be more than 0

Answer 11

now your something is x^2-y^2

Answer 12

ln(1)=0
ln(0)=\[ \infty\]

Answer 13

means greater than 0?