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How to do q11

How to do q11

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Grade:Select Grade

1 Answers

Akshay
185 Points
8 years ago
Put 1/3rt(2) * rt(4 – 1/3rt(2) * rt(4.....)) = x,
as it is an infinite series, adding one term to the series will not make any change,
So, 1/3rt(2)*rt(4-x) = x, Squaring this you will get quardatic equation 18x2+x-4=0 , x=4/9. Putting this you will get answer=4

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