Sum and Concat Operator operators in Linq.

Linq contains lots useful operators and i have found more two operators that can be help full in our day to day programming life. Here are explanation. Concat Operator: Concat operator concats two entities into single entities its very use full when we are doing some string operator where need to do string operations like concatenation. Here in example i have taken two arrays and concat into single entity. Sum Operator: When we are developing application like shopping cart and other stuff this operat...