Find A, if Tan 2A = Cot (A – 2A0
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Question:
Find A, if tan 2A = cot ( A - 2A0 )
Answer:
tan 2A = cot ( A - 2A0 )
We know tan ( 90° - θ ) = cot θ
➺ cot ( 90° - 2A ) = cot ( A - 2A0)
Now cot on left hand side gets cancel with cot on right hand side.
➺ 90° - 2A = A - 2A0
➺ 90° - 2A = A - 2A × 0
➺ 90° - 2A = A - 0
➺ 90° + 0 = A + 2A
➺ 3A = 90°
➺ A = 90°/3
➺ A = 30°
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