Q:let function f from R to R define by f(t)=t^2 and let U be any nonempty open subset of R. then

a) f(U) be open

b)inverse or f(U) is open

c)f(U) is closed

d)inverse of f(U) is closed.

Printable View

- Apr 21st 2009, 07:28 PMMathventureAnalysis question
Q:let function f from R to R define by f(t)=t^2 and let U be any nonempty open subset of R. then

a) f(U) be open

b)inverse or f(U) is open

c)f(U) is closed

d)inverse of f(U) is closed.

- Apr 21st 2009, 08:21 PMTheEmptySet