Działania na liczbach rzeczywistych - oblicz :
[(4⁴/₅ ) ⁻¹ · 2²/₃ - (1¹/₂) ⁻² ] ⁻¹
[(24/5)^-1 *8/3-(3/2)^-2]^-1[5/24*8/3-(2/3)^2]^-1[5/24*8/3-4/6]^-1[5/24*8/3-2/3]^1[15/3-2/3]^-113/3]^-1= 3/13
a^-2=(1/a)^2 zatem:
=[(24/5)^-1 * 8/3 - (3/2)^-2]^-1=[5/24*8/3-4/9]^-1=(1/9)^-1=9/1=9
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[(24/5)^-1 *8/3-(3/2)^-2]^-1
[5/24*8/3-(2/3)^2]^-1
[5/24*8/3-4/6]^-1
[5/24*8/3-2/3]^1
[15/3-2/3]^-1
13/3]^-1= 3/13
a^-2=(1/a)^2 zatem:
=[(24/5)^-1 * 8/3 - (3/2)^-2]^-1=[5/24*8/3-4/9]^-1=(1/9)^-1=9/1=9