Find the value of sqrt(30 + sqrt(30 + sqrt(30 + … infinity))).
A5
B6
C7
D8
Explanation
x = sqrt(30 + x) => x^2 – x – 30 = 0 => (x – 6)(x + 5) = 0 => x = 6.
Exam Relevance
- Topic: Algebra
- Subtopic: Infinite Series
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