A cable carrying a load of 10 kN/m is stretched between supports 100 m apart. The supports are at the same level and the central dip is 8 m. Find the greatest and the least tension (in kN) in the cable respectively.
1740.61, 1562.5
1640.55, 1562.5
1640.55, 500
1321.68, 1122.13
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