Oblicz:
a) (5⁻²×25²-20)⁻²b) 1600⁷÷(4⁴÷5⁵×80⁴)
a) (5⁻²×25²-20)⁻²=(1/25*625-20)⁻²=(25-20)⁻²=5⁻²=1/25
b) 1600⁷÷(4⁴÷5⁵×80⁴)=1600⁷/(256/3125*40960000)=1600⁷/3355443,2=
=268435456/3355443,2=80
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a) (5⁻²×25²-20)⁻²=(1/25*625-20)⁻²=(25-20)⁻²=5⁻²=1/25
b) 1600⁷÷(4⁴÷5⁵×80⁴)=1600⁷/(256/3125*40960000)=1600⁷/3355443,2=
=268435456/3355443,2=80