Wednesday
July 23, 2014

Homework Help: Math

Posted by Abbey(Please help) on Monday, May 3, 2010 at 12:24am.

When trying to solve
arctan(sqrt 567.2 / -459.6) my answer was -2.96. My teacher said that i handled the radical wrong. She said I have to square both numbers, then add them, and then find the square root. I am confused because you cannot take the square root of -459.6. Please explain.

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