Question

(2/3) во 2 степени - (1/4) во 2 степени =

Answer 1

(2/3)²=4/9,  (1/4)²=1/16, 4/9-1/16=64/144-9/144=55/144

Answer 2

$( frac{2}{3}) ^{2} - (frac{1}{4}) ^{2} = frac{4}{9} - frac{1}{16} = frac{64}{144} - frac{9}{144} = frac{55}{144}$

Answer 3

спасибо