Thursday

January 29, 2015

January 29, 2015

Posted by **Natalie** on Thursday, April 11, 2013 at 2:04pm.

- Precalc with Trig -
**Steve**, Thursday, April 11, 2013 at 2:52pmcos^2 - cos - 6 = 0

(cos-3)(cos+2) = 0

cos = 3 or -2

Bzzzt. |cos| <= 1, so not possible.

If there's a typo, fix it and apply the same steps.

- Precalc with Trig -
**Natalie**, Thursday, April 11, 2013 at 2:57pmThere isn't a typo this is the equation my professor gave us, thanks for the help!

**Answer this Question**

**Related Questions**

Precalc with Trig - What value(s) of theta (0 less than or equal to theta less ...

Trig--check answer - Solve the equation of the interval (0, 2pi) cosx=sinx I ...

precalc/trig - olve for the interval [0, 2pi]. cos(x+ pi/4)+cos(x- pi/4)=1

Trig - If cosx = 10/19 an pi < x < 2pi, find the exact value of cos x/2 ...

Math - Solving for Trig Equations - Solve the following equation for 0 less than...

trig - 2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3&#...

Trig - How would I do this problem? Verify that each equation is an identity. ...

Trig - Solve for 0<x<2pi ---> (2radical2)cos^2(x)-(radical2-2)cos(x)-1=...

trig - Find all real numbers in the interval [0,2pi) that satisfy the equation. ...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...