Question

Valoarea de adevar a proprietatii (3 supra 2+3 x 3 supra 4+3 supra 9):(9+3 supra 7:3 supra 2+27 supra 3)=3 este.....

Answer 1

(3 / 2 + 3 · 3 / 4 + 3 / 9) : (9 + 3 / 7 : 3 / 2 + 27 / 3) =
= (3 / 2 + 9 / 4 + 1 / 3) : (9 + 3 / 7 2 / 3 + 9) =
= (18 / 12 + 27 / 12 + 4 / 12) : (9 + 2 / 7 + 9) =
= [(18 + 27 + 4) / 12] : (18 + 2 / 7) =
= (49 / 12) : (126 / 7 + 2 / 7) =
= (49 / 12) : (128 / 7) =
= (49 / 12) · (7 / 128) =
= (49 · 7) : (12 · 128) = 343 : 1536.