find out the c . i on rs . 8000 at 4 % p . a . compound half - yearly for 1 1 / 2 years
"a = 8000 ( 51 / 50 ) 3 = 8489.66 8000 - - - - - - - - - - - 489.66 answer : a"
subtract(multiply(8000, power(add(1, divide(4, const_100)), divide(const_3, 2))), 8000)