please explain step by step
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6 which is rational
Step-by-step explanation:
pls check the below pdf for the step by step answer
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Step-by-step explanation:
- ATQ; (x+1/x)^2 =X^2 +1/X^2 +2.X.1/X
- " =X^2 +1/X^2 + 2
- ". = (3+2√2)^2 + 1/ (3+2√2)^2 +2
- => 9 + 8 + 12√2 + 1/ 9+8+12√2
- => 17 + 12 √2 + 1/17 +12√2
- => 17 +12√2 +(17 +12√2)^-1
- => 34 + 24√2 =(x +1/X)^2
- => X+1/X = √ 34 + 24√2
It is irrartional!!!!
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