Question

Which of the following are solutions to the given equation on the interval [0,2π)?
cot^3x−cotx=0
Select all that are true. If there are none that are true, do no select any before submitting.

π/6
0
5π/4
3π/4
π
π/3
11π/6
7π/4
π/4
π/2

check my answers: (these next 5)
5π/4
3π/4
7π/4
π/4
π/2

thank you

Answer 1

factoring ... (cot x) [(cot x) +1] [(cot x) - 1] = 0

values for cot(x) are ... 1 , -1 , 0