यदि a = 1.9 तथा b = 2.1 हो तो (a² + 2ab + b²) = ? - - Yadi A = 1.9 Tatha B = 2.1 Ho To (a& # 178 + 2ab + b& # 178) = ? Maths in hindi, decimal fractions 64 question answers in hindi pdf 4 questions in hindi, Know About 16 Maths online test Maths notes in hindi quiz book 20