Find the square root of 144 and add it to the square root of 169, then subtract the square root of 25 divided by the square root of 9. (
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Math question: Find the equation of a circle centered at (2, -3) with a radius of 5.
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Write a math question for the theme "Characteristics of cosine function f(x) = cos x":What is the amplitude, period, and domain of the function f(x) = cos(x)? How many x-intercepts does it have?