Question

tan ⁻¹0

Answer 1

The tangent of what angle is zero?

The sine of what angle is zero?

Answer 2

i guess? what does tan⁻¹0 = ?

Answer 3

arctan(0) = arcsin(0)/arccos(0) so you just have inverse functions. So the sinx = 0 if x = 0 and cosx = 0 if x = Pi/2 so in this case your answer is 0

Answer 4

That's what I was trying to define for you. Have you meat the tangent function?

It is NOT the case that \(atan(x) = \dfrac{asin(x)}{acos(x)}\). That is just incorrect.

It is not the case that tan(x) = 0 where cos(x) = 0. That is just incorrect.