Найти значение числового выражения

1) 16 = 2^4

256 = 2^8

√√ (16 * 256) = √√2^12 = 2^3 = 8

2) 81 ^ (-3/4) + (1/125) ^ (-1/3) - 1/32 =

= (3^4) ^ (-3/4) + ((1/5) ^3) ^ (-1/3) - (1/2) ^5 =

= 3 ^ (-3) + (1/5) ^ (-1) - (1/2) ^5 =

= 1/27 + 5 - 1/32 = (32 + 4320 - 27) / 864 = 4325/864

Ответ 4325/864