if x=3+2root 2 then find x + 1 ÷ x
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Answered by
15
hey
here's your answer!!
x = 3 + 2√2
1/x = 1/ (3 + 2√2)
=> 1/x = (3-2√2) /(3 + 2√2)(3-2√2)
=> 1/x = 3 - 2√2 / (3² - (2√2)²)
=> 1/x = 3 - 2√2 /9-8
=> 1/x = 3-2√2
so x + 1/x
is = to 3 + 2√2 +3 - 2√2
= 6 (Answer)
hope it helps!!
here's your answer!!
x = 3 + 2√2
1/x = 1/ (3 + 2√2)
=> 1/x = (3-2√2) /(3 + 2√2)(3-2√2)
=> 1/x = 3 - 2√2 / (3² - (2√2)²)
=> 1/x = 3 - 2√2 /9-8
=> 1/x = 3-2√2
so x + 1/x
is = to 3 + 2√2 +3 - 2√2
= 6 (Answer)
hope it helps!!
Akileshkumarag:
thank you
Answered by
2
Hey! ☺
The CORRECT answer is 6
HOPE it helped
The CORRECT answer is 6
HOPE it helped
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