Posted by **Ellyn** on Sunday, January 24, 2010 at 6:51pm.

"Sketch the graph of y=tan(x/2)

By solving the equation x/2=-pi/2

x=- pi

and the equation x/2=pi/2

x=pi..."

Before I go any further, I need to understand where these equations came from. Where does the pi come from out of thin air? What becomes of the tangent? Can you please explain why each step happens? That would be great, thanks.

## Answer this Question

## Related Questions

- math - On a graph paper draw a rough sketch of the straight lines whose equation...
- Calc 2 - Ok, I have two questions first: 1. I'm asked to find a cartesian ...
- Math - I'm having problems solving for an equation with a single variant. ...
- algebra 2 - A. I need to write an equation to the linear equation..(-2,-2), (3,3...
- Algebra - I need help solving this set of equations by substitution. xy=2 3x &#...
- ALGEBRA 1 - solve by graphing 3x+2y=8 6x+4y=16 You need to graph the 2 equations...
- trignometry - Some equations cannot be solved by symbolic manipulations. Use a ...
- System of equations - 3x =2y = 17 2x-y =9 and 3x+y = 3 x+2y = -4 How do I do ...
- ALGEBRA - Find the equation of the circle with radius 1 and center C(1, -2). ...
- Quadratic Functions - I need help solving this equation: y=-2x^+3 And you do ...

More Related Questions