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Three points A, B, C are marked in the s...

Three points `A, B, C` are marked in the stem of a coconut trees so that the distance of these points from its foot are in A.P. If the angles of elevation of these points from a point on the ground are `x, y, z` respectively. then.
i) Draw a rough sketch of thẻ situation..
ii) Show that `coty cotz, cotz cotx and cotx cot y` are also in AP .

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