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valentina_108 [34]
3 years ago
15

Write three irrational numbers between 4 and 5.

Mathematics
1 answer:
Westkost [7]3 years ago
8 0
Hello,

1) one way
4<x<5 ==>16<x²<25
if x²=17==>x=√17=4.123.....
if x²=18==>x=√18=4.242...
if x²=19==>x=√19=4.358...
...
if x²=24==>x=√24=4.898...

2) an other way

4<x<5 ==>64<x³<125

if x³=65 then ∛65=4.020...
...
if x³=124 then ∛124=4.986...

3) an other way

4 \textless\ k\pi \textless\ 5==\textgreater\  \dfrac{4}{\pi} \textless\ k\textless\ \dfrac{5}{\pi}\\&#10;&#10;==\textgreater\  1.2732... \textless\ k \textless\ 1.5915....\\&#10;&#10;==\textgreater\  1.27 \textless\ k \textless\ 1.60\\&#10;&#10;==\textgreater\  \dfrac{128}{100} \textless\ k \textless\  \dfrac{160}{100} \\&#10;&#10;example\ &#10;k=\dfrac{129}{100}==\textgreater\ \dfrac{129*\pi}{100}=4.05265...\\&#10;&#10;k=\dfrac{159}{100}==\textgreater\ \dfrac{159*\pi}{100}=4.9951....\\&#10;
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