Math, asked by lakshmidevi6019, 9 months ago

prove that 1/3-2√5 is an irrational

Answers

Answered by milinda27

0

Answer:

Step-by-step explanation:Assume that 3+2

5

is rational. Then,

3+2

5

=

b

a

5

=

2b

a−3b

This gives that

2b

a−3b

is rational but

5

is an irrational number, therefore, the assumption is wrong.

Hence, 3+2

5

is irrational.

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