Question

prove that _ 0.87×0.87×0.87+0.13×0.13×0.13divided by 0.87×0.87-0.87×0.13+0.13×0.13=1​

Answer 1

Answer:

1

Step-by-step explanation:

$it \: is \: in \: the \: form \: of \: \\ {a}^{3} + {b}^{3} = (a + b)( {a }^{2} - ab + {b}^{2} )\div \\ ( {a}^{2} - ab + {b)}^{2} \\ so \: we \: get \: a + b \: as \: answer \\ i.e.0.83 + 0.17 = 1 \\ hence \: proved$