22.12.2013, 18:56
Can you give us the exact question? A tangent is a number (radian), so I don't see how that tangent itself is a radian.
What's the context of the question? Have you studied series?
If yes, the formula to estimate the Arctan of something is:
I converted your angle to radians & filled in the formula, it gives a good result.
http://www.wolframalpha.com/input/?i...%3D0.628318531
This is not the solution you posted, so did you post the actual solution or did you post what you THINK is the actual solution?
Note that the exact solution matches pi/5, which might be related to something you studies before.
What's the context of the question? Have you studied series?
If yes, the formula to estimate the Arctan of something is:
I converted your angle to radians & filled in the formula, it gives a good result.
http://www.wolframalpha.com/input/?i...%3D0.628318531
This is not the solution you posted, so did you post the actual solution or did you post what you THINK is the actual solution?
Note that the exact solution matches pi/5, which might be related to something you studies before.