Consider the graph of y = tan x.

1. Consider the graph of y = tan x. (a) How does it show that the tangent of 90 degrees is undefined? (b) What are other undefined x values? (c) What is the value of the tangent of angles that are close to 90 degrees (say 89.9 degrees and 90.01 degrees)? (d) How does the graph show this? 2. A nautical mile depends on latitude. It is defined as length of a minute of arc of the earth's radius. The formula is N(P) = 6066 - 31 cos 2P, where P is the latitude in degrees. (a) Using the Cybrary and other course resources, find the exact latitude (to 4 decimal places) of where you live, used to live, work, or used to work (include the zip code). (b) Using the latitude found in part a a... click for more

Find an angle of a right triangle

The sides of the trigangle are 4 and 12, I know we are suppode to divide 4/12 & get .333333333 but I still cannot get the angle they got in class, which was 18.43.

Conditional ineuqality in a triangle.

In a triangle ABC, Angles are given in a particular order. Each angle is an acute angle. A number M is defined as Cos(A-B)/2SinA/2SinB/2. Find the minimum value of M.

Trigonometry

I want to check the answerthis to make sure I am on the right track. A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon.

Trigonometry

Solving problems such as find the lenght of L from point A to the top of the pole. (See attached file for full problem description with diagram) --- 1. Find the length L from point A to the top of the pole. 2. Lookout station A is 15 km west of station B. The bearing from A to a fire directly south of B is S 37°50' E. How far is the fire from B? 3. The wheels of a car have a 24-in. diameter. When the car is being driven so that the wheels make 10 revolutions per second, how far with the car travel in one minute? 4. A regular octagon is inscribed in a circle of radius 15.8 cm. Find the perimeter of the octagon. 5. What is the angle of elevation of the sun when a 35-ft mast cas... click for more