What do we mean by GDP & what is the equation of it ?

GDP:  are the abbreviations of  "Gross Domestic Product",

GDP Equation is as follows:

GDP = C + I + G + ( X - M )      

when,

C = The sum of consumption     I = Investment     G = Governmental sending    

X = Exports         M = Imports

Gross Dometic Product.

GDP = C + I + G + (Ex - Im), where “C” equals spending by consumers, “I” equals investment by businesses, “G” equals government spending and “(Ex - Im)” equals net exports, that is, the value of exports minus imports. Net exports may be negative.