C-03-Q063mediumsingle_mcqWith same data, ab=?ab = ?ab=?a111b222c333d000ব্যাখ্যাSubtracting a2−ab+b2=2a^2-ab+b^2=2a2−ab+b2=2 from a2+ab+b2=4a^2+ab+b^2=4a2+ab+b2=4 gives 2ab=22ab=22ab=2, hence ab=1ab=1ab=1.