Question

show that 3 + 5√2 is irrational number.
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Answer 1

Answer:

assume that 3+5√2 is rational.

Step-by-step explanation:

Then 3+5√2 = a/b

√2 = a-3b/5b

the gives that a-3b/5b is rational, but √2 is irrational number.

therefore, the assumption is wrong.

Hence, 3+5√2 is rational.