Math, asked by raktimgoswami, 9 months ago

if x=3+2√2.thenx+1/x=​

Answers

Answered by jhumadas9567
1

Answer:

Given x = 3+2√2

x +1/x

= 3+2√2 + 1 / 3+2√2

= 3+2√2 + 3-2√2 / 3+2√2(3-2√2)

= 3+2√2 + 3-2√2 / 3² - (2√2)²

= 3+2√2 + 3-2√2/9-8

= 3+2√2 + 3-2√2

= 6 Which can be written in p/q forrm. (6/1)

Therefore it's a rational number!.

: )

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Answered by Sarthaki20
0

6/ 1 is the answer

pls mark me as brainliest

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