if tanA= 12/13 find 2sinA.cosA/cos²A.Sin²A
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Step-by-step explanation:
(AC) 2 = ( Ab) 2- (BC) 2
= (13)2 -(12)2
= 169 - 144
= 25
(AC) 2 = 25
Ac =5
2(12/5).(13/5)
24/5.13/5
312/10
31.2
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