sin 12.52. Show that sin o + sin 30 + sin 5e + .* = tan- and thus complete Problem 12.20. 12.53. A string 2 ft long is stretched between two fixed points z=0 and z= 2 If the displacement of the string from the z axis at t=0 is given by f(2) = .03z(2 - 2) and if the initial velocity is zero, find the displacement at any later time.
sin 12.52. Show that sin o + sin 30 + sin 5e + .* = tan- and thus complete Problem 12.20. 12.53. A string 2 ft long is stretched between two fixed points z=0 and z= 2 If the displacement of the string from the z axis at t=0 is given by f(2) = .03z(2 - 2) and if the initial velocity is zero, find the displacement at any later time.
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