Solve(i) If tan 2A = cot(A - 18), if 2A actue angle find value of A . (ii) A circus artist is climbing a 20 m long rope, which is tightly stretched and tied from the top of a verticle pole to the ground . Find the height of a pole, if the angle made by the rope with ground is 30 degree.
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1.) A = 36°
2.) 10m
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