Trigonometry equalities, inequalities and expressions - sin, cos, tan, cot


Postby Eric » Mon Jan 24, 2011 9:10 am

I missed some of my trigonometric lessons.
Could you explain, please what is the definition of arctan?

Re: arctan

Postby 10 grade » Tue Jan 25, 2011 9:48 am

I am not so sure but
I suppose that arctan = 1/tan

10 grade

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