Exercise 5 Let f be a continuous function on R such that imL
     Exercise 5. Let f be a continuous function on R such that im()L and lim f()- Prove that for any real c between L+ and L, there exists r R such that f(a)c. ntinuous function on R suoch  
  
  Solution
given that the function is continuous on real line
L+ and L- are end values of function then every value lying in between L+ and L- should be assigned to atleast one value of xas it is continuous
hence there exists x R such that f(x) = c

