What is the value of arcsin(1/2) + arccos(1/2) + arctan(1) - arccsc(2) + arcsec(2)?
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Find the square root of 144 and add it to the square root of 225. Subtract the square root of 64 and multiply it by the square root of 36. Then, divide the result by the square root of 169. Round the answer to two decimal places.
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What is the area of a triangle when the base is 8 units and the height is 12 units?