C-03-Q051mediumsingle_mcq10072=?1007^2 = ?10072=?a101404910140491014049b100704910070491007049c101400710140071014007d100490010049001004900ব্যাখ্যাWrite 1007=1000+71007=1000+71007=1000+7 and use (a+b)2=a2+2ab+b2(a+b)^2=a^2+2ab+b^2(a+b)2=a2+2ab+b2: 1000000+2(1000)(7)+49=1000000+14000+49=10140491000000+2(1000)(7)+49=1000000+14000+49=10140491000000+2(1000)(7)+49=1000000+14000+49=1014049.