
Show transcribed image text Suppose that the function F is continuous at the point-a, and that F(a) 〉 0. Use the definition of continuity to prove that there is an open interval I containing the point a which has the propery that F(z) > 0 for all z E .
Suppose that the function F is continuous at the point-a, and that F(a) 〉 0. Use the definition of continuity to prove that there is an open interval I containing the point a which has the propery that F(z) > 0 for all z E .





