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
Arctan 0 - How to Find Arc Tan 0? | Tan Inverse 0
Решено)Упр.21.33 ГДЗ Мордковича 10 класс профильный уровень по алгебре
How do you evaluate arctan(-1) using a unit circle? | Socratic
Solved: (FGV-SP) O valor da expressão y=arctg( 1/2 )+arctg( 1/3 )e a) π/3. b) π/4. c) π/2. d) π/6. [algebra]
SOLVED: arctan(x) = tan^(-1)(x), but tan^(-1)(x) = tan^(-1)(tan(x)) - Example: arctan(1) = tan^(-1)(1) = 45° + 45° tan(1) tan - The same is applied for arcsin(x).
arctan(x) | inverse tangent function
How to show that arctan 1/3+arctan 1/5=arctan 4/7 - Quora
A Surprising Identity! [ arctan(x)+arctan(1/x)=pi/2 ] - YouTube