3.2.21 The solution of the problem of the collection of

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The homogeneous beam AB, weighing 200 N freely supported at point B on the horizontal beam CD. To determine the force with which the beam CD acts on the reference plane at D if the distance CB = BD, the angle α = 60 °. Weighing beams CD neglected.
you will get a solution to the problem 3.2.21 (Chapter 1 - statics topic - 3.2: Balance statically determinate system of bodies under the influence of a plane system of forces) on the theoretical mechanics of collection of short tasks Kep OE YA.A . Viba, OP Grapis, JA Svetinysh and others. Publishing Moscow / Graduate School / 1989, 2009, 2012. The task is made in the format word (typed or hand-written decision in a Word) or in manuscript form in the format gif, packed to the archive zip (open on any PC) .After checking the solutions would be very grateful if you leave your positive feedback.