Is it Must to be GOOD in Mathematics to be a Programmer...???

Answer 1

it can be opposite: you will become better in math by programming.
Programming will make math concepts more practical and you will understand them better when your program needs them.
applied math.

Answer 2

Most of programming concepts are really mathematical concepts
So you will have to learn those in one or other way
Besides programming makes use of of mathematics (boolean algebra, linear algebra, numeric methods, algorithms, and so on)