C-03-Q200mediumsingle_mcqValue of 14{(a+b)2−(a−b)2}\dfrac{1}{4}\{(a+b)^2 - (a-b)^2\}41{(a+b)2−(a−b)2}:aabababba2+b2a^2 + b^2a2+b2c2(a2+b2)2(a^2 + b^2)2(a2+b2)d4ab4ab4abব্যাখ্যাUsing (a+b)2−(a−b)2=4ab(a+b)^2 - (a-b)^2 = 4ab(a+b)2−(a−b)2=4ab, the expression becomes 14×4ab=ab\dfrac{1}{4}\times 4ab = ab41×4ab=ab.