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What is the sum of the first 8 terms of the geometric series

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)

Interpret the following expression (5y^2-7)^3/(2y)^2