Question

Name four angles whose tangent equals 0.

Answer 1

If tan α = 0
α = tan^(-1) 0 
α = k π ,  k ∈ Z ( any integer ),  π = 180°
0 · 180° = 0
1 · 180° = 180°
2 · 180° = 360°
3 · 180° = 540°
Answer:
Angles are: 0°, 180°, 360°, 540°.

Answer 2

Answer:

Angles are: 0°, 180°, 360°, 540°        

Step-by-step explanation:

we have to tell four angles whose tangent equals 0.

i.e if $\tan\theta=0$

we have to find 4 values of $\theta$

$\theta= tan^{-1}0$  

$\theta = n\pi$ where n is integer

Put k=0, 1, 2, 3

n=0, $\theta = 0^{\circ}$

n=1, $\theta = 180^{\circ}$

n=2,$\theta = 360^{\circ}$

n=3, $\theta = 540^{\circ}$

Angles are: 0°, 180°, 360°, 540°