1. Find the exact value of the sine, cosine, and tangent of the angle. 11pie/12 2. Find all solutions of the equation in the interval [0, 2pie). Sin(x-5pie/6)-sin(x+ 5pie/6) =1 3. Find the exact value of sin2x using the double angle formula. Please help explain the use of the double angle formula. Sin x=1/7, 0

1. Find the exact value of the sine, cosine, and tangent of the angle. 11pie/12 2. Find all solutions of the equation in the interval [0, 2pie). Sin(x-5pie/6)-sin(x+ 5pie/6) =1 3. Find the exact value of sin2x using the double angle formula. Please help explain the use of the double angle formula. Sin x=1/7, 0click for more

solve

The '' blog'' has been quiet for a while , so you decide to create a math challenge. You post the following issues and then try to address them along with the people you've been interviewing. 1. Explain why vectors QR and RQ are not equivalent. 2. Explain in your own words when the elimination method for solving a system of equations is preferable to the substitution method.

solve

Researchers at the National Interagency Fire center in Boise , Idaho coordinate many of the firefighting efforts necessary to battle wildfires in the western United States . In an effort to dispatch firefighters for containment , scientists and meteologists attempts to forecast the direction of the fires . Some of this data can be expressed as matrices . Help solve the following problems. 1. A ranger in fire tower A spots a fire at a direction of 295 degrees . A ranger in fire tower B, located 45 miles at a direction of 45 degrees from tower A, spots the same fire at direction ... click for more

sin, cosine, and tangent formulas

why (x+450) can be simplified by cosine and sin, but not tan?

Homework help please.

Not good with word problems. Please help.