# If tan 2A = cot (

We are given that: tan 2A = cot (A – 12°)

We can rewrite it as: cot (90° - 2A) = cot (A – 12°)

On comparing both sides, we get,

90° - 2A = A – 12 °

A + 2A = 90° + 12°

3A = 102°

A = 34°

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