prove that 2+4÷5√7 is irrational
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Answered by
3
Answer:
2+4÷5√7
Let be,
2+4÷5√7
6÷5√7
5√7= a6
√7= a6/5b
This shows (a6/b5) is a rational number, √7 is irrational number
Because we know that √7 an irrational number
Answered by
2
2+4=577
Let be,
2+4577
6-517
517= a6
17= a6/5b
This shows (a6/b5) is a rational number,
17 is irrational number
Because we know that v7 an irrational number
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