An observer stands 120 feet away from a church and measures the angles of elevation of the top and bottom of the steeple to be 24.4 degrees and 18.2 degrees respectivel. What is the height of the steeple to the nearest foot??
Find the general form of the solution of the equation x such that sin x = cos5x. Example: for the equation tan x=1, the solutions can be described by x = pi/4 + n*pi, nEZ
A cone has a slant side measure (m) and a semi-vertical angle 2(x). Prove that the measure r of the radius of the sphere inscribed in the cone is given by:
r = (m sin(4x))/2(1+sin(2x))
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