given are the two sides of a triangle:

b=5,c=13        hence,sin theta=5/13
asked Dec 1, 2011 in Trigonometry Answers by anonymous

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1 Answer

using pathegorean theorm calculate he 3rd side so that you have all 3 sides,

a^2 + 25 = 169

subtract 25 from each side

a = squareroot of 144

a = 12 b =5  c = 13

sin = opp/hyp = 5/13                             csc = 1/sin = 1/ 5/13 = 13/5

cos = adj/hyp = 12/13                            sec = 1/cos = 1 / 12/13 = 13/12

tan = opp/adj = 5/12                          cot = 1/tan = 1/  5/12 =  12/5
answered Dec 1, 2011 by Al Level 6 User (15,320 points)
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