Find the value of : √(8 + 2√(8 + 2√(8 + ……)))
√(8 + 2√(8 + 2√(8 + ……))) का मान ज्ञात कीजिए :
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Correct answer: D. 4
Explanation
Let y = √(8 + 2y): y² − 2y − 8 = 0 → (y − 4)(y + 2) = 0 → y = 4.
y = √(8 + 2y) → y² − 2y − 8 = 0 → y = 4।
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