Wykonaj działania :
a) ( 3 ⁴₇ - 4 ²₅ ) * 1 ¹₆ =
b) - 4 ³₈ * 2 ²₇ + 4 ¹₂ =
c) 2 ¹₃ : ( 1¹₃ + 3 ¹₆ ) =
d) 4 ¹₁₂ * 2 ²₇ : 3 ¹₉ - 12 =
e)(2 ¹₅ * 3 ⁹₂₂) - (3 ¹₂ * 2 ¹₇)=

f) - 1 ¹¹₁₄ * 1 ³₂₅ + 2
_______________ =

¹²₁₃ : ⁷₁₆

1

Odpowiedzi

2010-04-12T21:38:44+02:00
A) ( 3 ⁴₇ - 4 ²₅ ) * 1 ¹₆ =(25/7 - 22/5)*7/6=(125/35 - 154/35)*7/6=-71/35*7/6=71/30=2 11/30

b) - 4 ³₈ * 2 ²₇ + 4 ¹₂ =-35/8*16/7+4 1/2=10+4 1/2=14 1/2

c) 2 ¹₃ : ( 1¹₃ + 3 ¹₆ ) =7/3 / (4/3+19/6)=7/3 / (8/6+19/6)= 7/3 / 27/6= 7/3*6/27=14/27

d) 4 ¹₁₂ * 2 ²₇ : 3 ¹₉ - 12 =49/12 * 16/7 / 28/9 - 12=28/3*9/28-12=-3-12=-15

e)(2 ¹₅ * 3 ⁹₂₂) - (3 ¹₂ * 2 ¹₇)=(11/5*75/22)-(7/2*15/7)=15/2 - 15/2=0

f) - 1 ¹¹₁₄ * 1 ³₂₅ + 2 -25/14 * 18/25 + 2 -9/7 + 2 5/7
__________________ =__________________= ________=________=

¹²₁₃ : ⁷₁₆ 192/91 192/91 192/91

=5/7 / 192/91= 5/7 * 91/192=455/1344 ---- to jest chyba źle;/