Correct Answer: Option B
here, sinA = 12/13 so, cos2A =1-sin2A = 1-(12/13)2 = 1 - (144/169) = 169-144/169 = 25/169 cosA= 5/13 so, tan A = sinA/cosA = 12/13 X 13 X 5 =12/5
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