Plot the point with spherical coordinates (2, -5pi/6, pi/6) and describe its location in both rectangular and cylindrical coordinates.

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Q: Show that the sum of the degree of all vertices in a graph is an even integer.

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Q: Evaluate (-2.5-j3)5 399.1265+j542.0054 -345.9945 + j774.9032 296.0938+j858.5625 -545.5590-j660.3301

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