If the AM of two positive numbers \( a \) and \( b(ab) \) is twice of their GM, then \( a: b \) ... VIDEO
If the AM of two positive numbers \( a \) and \( b(ab) \) is twice of their GM, then \( a: b \) is
(a) \( 2+\sqrt{3}: 2-\sqrt{3} \)
(b) \( 7+4 \sqrt{3}: 7-4 \sqrt{3} \)
(c) \( 2: 7+4 \sqrt{3} \)
(d) \( 2: \sqrt{3} \)
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