What is the value of \(\dfrac{3^{(a+b)^2}}{3^{(a-b)^2}}?\)

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What is the value of \(\dfrac{3^{(a+b)^2}}{3^{(a-b)^2}}?\)

(1) \(a + b = 7\)
(2) \(ab = 12\)

Answer: B

Source: Manhattan GMAT