if alpha and beta 20 of the quadratic polynomial p x = 2 x square - 3 x + 7 evaluate one upon alpha plus one upon beta
a current of 0.5 ampere is drawn by a filament of an electric bulb for half and flows through the circuit. please help
find the current through the circuit containing a two resistors of 20 ohm and 15 ohm and 7V battery as well as it is in series connection.please answer it fast anyone no spamming otherwise he/she will be reported.