What is the value of sin(45°) + cos(60°) / tan(30°) - sec(90°) + csc(180°)?
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What is the formula for finding the area of a regular hexagon with a side length of 's' units?
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What is the equation of an ellipse in standard form, given the center at (h, k), major axis length of 2a, minor axis length of 2b, and horizontal orientation?