If the square of the sum of two numbers is equal to 4 times of their product, then the ratio of these numbers is :
Answer : Option C
Explanation : (x + y )² = 4xy
⇒ x² + y² + 2xy – 4xy = 0
⇒ (x – 2 0
⇒ x = y
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If the square of the sum of two numbers is equal to 4 times of their product, then the ratio of these numbers is :
(x + y )² = 4xy
⇒ x² + y² + 2xy – 4xy = 0
⇒ (x – 2 0
⇒ x = y