this is my question answer ths
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Your question is incorrect
Tan 2A = Cot(A-18) this is correct
now the solution
Tan 2A is written as Cot(90-2A)
therefore,
Cot(90-2A) = Cot(A-18)
Cot cancel out from both side
90-2A = A-18
108 = 3A
A = 36°
Tan 2A = Cot(A-18) this is correct
now the solution
Tan 2A is written as Cot(90-2A)
therefore,
Cot(90-2A) = Cot(A-18)
Cot cancel out from both side
90-2A = A-18
108 = 3A
A = 36°
anurag214:
thanks
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