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52.Oblicz
b) 6^-2
c) (2/7)^-1
d) 0.25^-1 + (2/3)^-1
e) (2/5)^-2 + (1 1/3)^-1
f) (√3/4)^-2 + (1/√2)^-4
53.Oblicz
a) (2/3)^-2 - (4/3)^-1
b) [ (1/5)^-3 - (1/3)^-4]^-1
c) 4^2 * 4^-1 - 7^0 / 1+2^-3
d) (1/5)^-3 * 5^-2 + (1/5)^-2 / 10 - (1/2)^-3
e) 2^-3 - (3/4)^-2 * (- 1/2)^2 / 9^-1 + (- 1/8)^0
f) 4 * 2^-2 - (3/2)^-3 + 9 * 3^-1 / 20^-1 * (1/5)^-2 - 16 * (- 4/3)^-3
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b) 6^-2 = (1/6)^2=1/36
c) (2/7)^-1= 7/2=3 i 1/2 czyli 3,5
d) 0.25^-1 + (2/3)^-1 = (1/4)^-1+(2/3)^-1=4+3/2=5 i 1/2 czyli 5,5
e) (2/5)^-2 + (1 1/3)^-1= (2/5)^-2+(4/3)^-1= (5/2)^2+3/4= 25/4+3/4=6 i 1/4+3/4= 7
f) (√3/4)^-2 + (1/√2)^-4= (√3/2)^-2+(1/√2)^-4=(2/√3)^2+√2^4=4/3+√16+4/3+4=4 i 4/3
53.Oblicz
a) (2/3)^-2 - (4/3)^-1= (3/2)^2-3/4=9/4-3/4=6/4
b) [ (1/5)^-3 - (1/3)^-4]^-1= [ 5^3 - 3^4 ] ^-1 = [ 125 - 81 ] ^-1=44^-1= 1/44
c) 4^2 * 4^-1 - 7^0 / 1+2^-3= 16*1/4-1/1+(1/2)^3= 4*1-1/1+(1/8)=3/1 i 1/8=
3:(9/8)= 3* 8/9=8/3=2 i 2/3
d) (1/5)^-3 * 5^-2 + (1/5)^-2 / 10 - (1/2)^-3= 5^3 * (1/5)^2+5^2 / 10-2^3=
125 * 1/25+25 / 10-8=5+25/10-8=30/2=15
e) 2^-3 - (3/4)^-2 * (- 1/2)^2 / 9^-1 + (- 1/8)^0=tego nie wiem
f) 4 * 2^-2 - (3/2)^-3 + 9 * 3^-1 / 20^-1 * (1/5)^-2 - 16 * (- 4/3)^-3 = tego też nie wiem