Question

Oblicz wartości wyrażeń dla: a=1/5, b=2 , c=1 , d=1/3
5b-b do kwadratu=
5a-a do kwadratu=
5c-c do kwadratu=
5d-c do kwadratu=
(a-1/10):3=
(b-1/10):2=
(c-1/100:6=
(c-2/6):6=
(d-2/6):14=

plis daję naj;*
ej ta / oznacza kreskę ułamkową

Answer 1

a=1/5, b=2 , c=1 , d=1/3
5b-b do kwadratu= 5*2-2^{2} = 10-4 = 6
5a-a do kwadratu= 5*1/5-(1/5)^{2} = 1-1/25 = 24/25
5c-c do kwadratu= 5*1-1^{2} = 5-1 = 4
5d-c do kwadratu= 5*1/3-1^{2} = 5/3-1 = 5/3-3/3 = 2/3
(a-1/10):3= (1/5-1/10):3 = (2/10-1/10):3 = 1/10:3 = 1/30
(b-1/10):2=(2-1/10):2 = (20/10-1/10):2 = 19/10:2 = 19/20
(c-1/100):6=(1-1/100):6 = 99/100:6 = 33/200
(c-2/6):6= (1-2/6):6 = 4/6:6 = 4/36 = 1/9
(d-2/6):14= (1/3-2/6):14 = (2/6-2/6):14 = 0:14 = 0

 

^{2} do kwadratu

Answer 2

A=1/5
b=2
c=1
d=1/3
5b-bkw=5*2-2*2=10-4=6
5a-akw=5*1/5-1/5*1/5=1-1/25=24/25
5c-ckw=5*1-1*1=5-1=4
5d-ckw=5*1/3-1*1=5/3-1=1 2/3-1=2/3
(a-1/10):3=(1/5-1/10):3=(2/10-1/10)*1/3=1/10*1/3=1/30
(b-1/10):2=(2-1/10):2=1 9/10*1/2=19/10*1/2=19/20
(c-1/100):6=(1-1/100):6=99/100*1/6=99/600=33/200
(c-2/6):6=(1-2/6):6=4/6*1/6=4/36=1/9
(d-2/6):14=(1/3-2/6):14=(2/6-2/6)*1/14=0*1/14=0
ps.kw oznacza kwadrat