Question

What is the arctan (-1)?
B.
`-(\pi )/(4)`

Answer 1

Option B. is correct.

Explanation:

arctan(y) = tan - 1(y) = x+ kπ

for k = {...,-2,-1,0,1,2,...}

➫ e.g tan(45°) = 1

➫ and that would mean the arctangent of 1 is 45 degrees(We represent this in π/? form)

arctan(1) = tan-1(1) = 45° = -π/4

Hope this helps!