I love maths - arctan(1/3)+arctan(1/2)=arctan1...As the total angle made by green and blue angle is nothing but an angle created by diagonal of a square (which is π/4). | Facebook
Arkusfunktion – Wikipedia
Tabel cu valori ale functilor arcsin, arccos,arctg - Analiza matematica ...
Arctan(x)+arctan(1/x)=pi/2 - YouTube
Functia arctg – Tug Of Web
Tabel cu valori ale functilor arcsin, arccos,arctg - Analiza matematica ...
Inverse Tangent -- from Wolfram MathWorld
Tabel cu valori ale functilor arcsin, arccos,arctg - Analiza matematica ...
How do you evaluate arctan(1) without a calculator? | Socratic
1)arctg(-1)-arctg1=2)arcsin1-arccos(-корень из 2 на 2)=3)arcsin(-1/2)-arctg корень из - Школьные Знания.com
Tabel cu valori ale functilor arcsin, arccos,arctg - Analiza matematica ...