jipper111
contestada

25 Points! Pre-Calc help? Will award brainliest.

Find the solution set of the given equation for 0 ≤ x ≤ 2π.

-tanA = -1

A. pi/4, 3pi/4
B. pi4/, 5pi/4
C. 3pi/4, 5pi/4
D. 3pi/4, 7pi/4

Respuesta :

savannahdancer1

The answer is B. If you look at a graph of -tan (which is cot), the places the graph crosses -1 are at pi/4 plus kpi. If you add pi to pi/4, you get 5pi/4, and these two answers are in B only.

Im adding an answer so the other guy that gave an answer gets his points.

Otras preguntas