Która z liczb jest większa : x czy y ?
a) x = 2⁴ × 4 ⁻²
y = 4⁻⁴ : 8⁻²
b) x= (2⁻⁴ : 2⁻⁶ )⁻¹
y =(2⁻⁴ × 2⁻³)⁻¹
;)
a)
x=16 x 1/16
x=1
y=1/256 : 1/64
y=1/256 x 64
y =1/4
x>y
b)
x=(1/16 : 1/64)⁻¹
x=(1/16 x 64)⁻¹
x=4⁻¹
x=1/4
y=(1/16 x 1/8)⁻¹
y=(1/128)⁻¹
y=128
x<y
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a)
x=16 x 1/16
x=1
y=1/256 : 1/64
y=1/256 x 64
y =1/4
x>y
b)
x=(1/16 : 1/64)⁻¹
x=(1/16 x 64)⁻¹
x=4⁻¹
x=1/4
y=(1/16 x 1/8)⁻¹
y=(1/128)⁻¹
y=128
x<y