The correct answer is 9.The result of the MS-Excel formula-SUM(1,2)^SUM(1, 1) is 9.Firstly SUM(1,2) will be solved and it is equal to 3------3^SUM(1,1)Then SUM(1,1) will be solved and it is equal to 2------3^2Then lastly 3^2 is solved which means the square of 3 is equal to 9.Additional InformationThe Excel SUM function returns the sum of values supplied.These values can be numbers, cell references, ranges, arrays, and constants, in any combination.SUM can handle up to 255 individual arguments.Purpose Add numbers togetherReturn value The sum of values supplied.Syntax =SUM (number1, [number2], [number3], ...)Arguments number1 - The first value to sum.number2 - [optional] The second value to sum.number3 - [optional] The third value to sum.