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If cos (α + β) = 5/3 , sin(α - β) = 5/13 and ,α, β < π/4, then tan (2α) is equal to -

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If cos (α + β) = 5/3 , sin(α - β) = 5/13 and ,α, β < π/4, then tan (2α) is equal to -

(1)  63/52

(2)  63/16

(3)  33/52

(4)  21/16

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Correct option  (2) 63/16

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