find the compound interest on $ 10,000 in 2 years at 4 % per annum , the interest being compounded half - yearly
"principal = $ 10000 ; rate = 2 % per half - year ; time = 2 years = 4 half - years . amount = $ [ 10000 * ( 1 + ( 2 / 100 ) ) 4 ] = $ ( 10000 * ( 51 / 50 ) * ( 51 / 50 ) * ( 51 / 50 ) * ( 51 / 50 ) ) = $ 10824.32 . : . c . i . = $ ( 10824.32 - 10000 ) = $ 824.32 . answer c ."
subtract(multiply(power(add(divide(divide(4, const_100), 2), const_1), 4), 10,000), 10,000)