sin(arctan(-3pi/4))

arctan(tan(2pi/3) thanks. arctan(tan(2pi/3) = -pi/3 since arctan and tan are inverse oper...

wht is pi + arctan(-0.45)

sin(arctan(-4/3) okay so i made arctan(-4/3) = x so im solving for sin(x) and x= arctan(-4/3)...

Simplify arctan 1/3 + arctan 2/3(round to the nearest degree).

Transform arctan x + arctan y = pi/4 into algebraic expression A) x+xy-y = 1 B) x-xy-y = 1 C)...

y'? 1.y=arctan(a+x/1-ax); a is constant 2.y=e^x-e^-x/e^x+e^-x

Prove:- arctan(1/4)+ arctan(1/9)= (1/2)arccos(3/5)

y" + arctan(y) = 7 is this differential equation linear or non linear?

4 arctan(1/3)+4 arctan(1/4)+4 arctan(2/9)=pi how do i prove it but without using this formula arcta...

lim x->-∞ arctan( |9- 4x^2| / 3 - 4x^2 - 4x )

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