C-03-Q038mediumsingle_mcqWith same data, a2+b2=?a^2 + b^2 = ?a2+b2=?a111b222c333d44ব্যাখ্যাAdding the two expressions a2+ab+b2=3a^2+ab+b^2=3a2+ab+b2=3 and a2−ab+b2=1a^2-ab+b^2=1 gives , so .