a)   x = 1/2π, x = 1/3π, x = 1/6π, x = 1/8π, 
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b)   x = 1/4π, x = 3/4π, x = 1/5π, x = 1/8π, 
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c)   x = 3/4π, x = 1/3π, x = 1/6π, x = 3/8π, 
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d)   x = 2/5π, x = 1/3π, x = 2/3π, x = 5/6π, 
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e)   x = 5/6π, x = 1/2π, x = 7/6π, x = 3/8π, 
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f)   x = 1/6π, x = 1/2π, x = 7/6π, x = 3/2π, 
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a)   A = (1/4π,2) en B(9/4π,-2)
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b)   A = (1/3π,2) en B(7/3π,-2)
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c)   A = (1/5π,2) en B(10/4π,-2)
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d)   A = (1/4π,2) en B(10/4π,-2)
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e)   A = (1/5π,2) en B(7/3π,-2)
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f)   A = (3/8π,2) en B(9/4π,-2)
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a)   p = 1, q = 1, r = 2, s = 0,50
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b)   p = 1, q = 2, r = 2, s = 2,2
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c)   p = 1,5, q = 2,5, r = 2,5, s = 2,5
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d)   p = 1,12, q = 1, r = 1, s = 0,50
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e)   p = 1,12, q = 2, r = 2, s = 2,50
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f)   p = 1,12, q = 2, r = 0,23, s = 0,50
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