Finding solutions

[eutas1]

Not sure on how they got the other two solutions (inside the drawn red square) - please refer to my attachments.

 

[lev888]

Not sure on how they got the other two solutions (inside the drawn red square) - please refer to my attachments.

Can you solve sin(x)=0?
x is any real number.

 

[eutas1]

Can you solve sin(x)=0?
x is any real number.

x = 0, pi, 2pi ??

 

[lev888]

x = 0, pi, 2pi ??

Any other solutions? Have you seen a sin(x) graph? Did you notice how it keeps intersecting the x axis as it extends to the right _and_ left? What does it tell you about the solutions of sin(x) = 0?

 

[Steven G]

We know that for one period of a sine cure that 0<= x <=2pi, so 0<= 2x < 4pi

 

[Steven G]

x = 0, pi, 2pi ??

Those are answers only for one period of a sine graph. The sine graph goes well beyond [0, 2pi)

 

[eutas1]

We know that for one period of a sine cure that 0<= x <=2pi, so 0<= 2x < 4pi

OH WAIT!!! I did not consider the domain properly.... Thank you!! I get it now