How do i solve trig equations on this? And also factoring.

It seems the calc doesnt recignie cos^2_x keeps saying missing (

I want to factor and solve for x by putting in cot x cos^2x-2cot x

How do i put it in?

Thanks!

Printable View

- May 17th 2012, 11:34 AMnoork85Ti-nspire cas trig equations
How do i solve trig equations on this? And also factoring.

It seems the calc doesnt recignie cos^2_x keeps saying missing (

I want to factor and solve for x by putting in cot x cos^2x-2cot x

How do i put it in?

Thanks! - May 17th 2012, 01:33 PMPlatoRe: Ti-nspire cas trig equations
- May 17th 2012, 02:00 PMnoork85Re: Ti-nspire cas trig equations
Thank u so much!

Also, how would i graph if im given,

Vertex (4,-1); point (2,3)

I know how to graph but smetimes i messup with signs and i screw up the whole graph. - May 17th 2012, 02:33 PMskeeterRe: Ti-nspire cas trig equations
- May 17th 2012, 02:35 PMnoork85Re: Ti-nspire cas trig equations
Yes.

- May 17th 2012, 02:46 PMskeeterRe: Ti-nspire cas trig equations
you should be familiar with the vertex form of a parabola ...

$\displaystyle y = a(x-h)^2 + k$

sub in the given vertex coordinates $\displaystyle (h,k)$ and the coordinates of the given point $\displaystyle (x,y)$ ... solve for $\displaystyle a$ , then graph.

btw ... next time state what you are graphing. if you had not mentioned a vertex, I would've had no idea what you wanted graphed in the first place. - May 17th 2012, 02:48 PMnoork85Re: Ti-nspire cas trig equations
Yes, i realized that, sorry.

I know how to graph on paper, i just wanted to know how to graph on the calc so i can verify my ans.

Thanks. - May 17th 2012, 03:00 PMskeeterRe: Ti-nspire cas trig equations
- May 17th 2012, 03:08 PMnoork85Re: Ti-nspire cas trig equations
Yes, and its all very confusing.

- May 17th 2012, 03:08 PMnoork85Re: Ti-nspire cas trig equations
Do u have a ti-nspire cas calc?

- May 17th 2012, 03:13 PMskeeterRe: Ti-nspire cas trig equations
no