Trigonometric formulas

Using the exact value cos(pi/4) = 1/square root of 2 and a trigonometric formula, show that sin (pi/8) = (square root of (2 - Square root of 2)/2. Using exact value cos(pi/6) = (square root of 3)/2 and a double angle formula to obtain an expression for the exact value of sin(pi/12)

Solve for beta

In the attached problem, I am trying to solve for Beta. We have done other problems that solve for the faces of the triangle but not sure on how to solve for this face.

Trigonometric equation

tan x + sec x = 1 Solve equation for 0 less than or equal to X less than 2 pi

How long is the wire if the pole and building are 48' apart and the ground is level?

An overhead wire stretches from the service drop on a building, which is 20' from the ground, to an insulator on a pole which is 35' from the ground. How long is the wire if the pole and building are 48' apart and the ground is level? Carry the answer out 2 decimals.

Calculate the distance between origin (0,0) and the point (square root of 3, 1)

Calculate the distance between origin (0,0) and the point (square root of 3, 1) Locate each point in a coordinate system. Draw a ray from the origin through the given point. Indicate with an arrow the angle in standard position having smallest positive measure. Then find the distance r from the origin to the point, using the ...continues

Trigonometry

Locate each point in a coordinate system. Draw a ray from the origin through the given point. Indicate with an arrow the angle in standard position having smallest positive measure. Then find the distance r from the origin to the point, using the distance formula. (4√3, -4)

Trigonometry

See attach file.

Trigonometry

See attach file. Thanks.

Trigonometry

Find the value of x (in degrees) for: cos(6x+5) = 1/sec(4x+15) sec(2x+6)*cos(5x+3)=1

Acute Angles and Right Triangles

Find the exact value of each [side] labeled with a letter {see attachment for diagram}