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How to solve it and what thw answer is

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.