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Trigonometry : Word Problems

Please see the attached file for the fully formatted problems. Find the exact trigonometric function value. sec 2655 Solve the problem. From a boat on the lake, the angle of elevation to the top of a cliff is If the base of the cliff is 1216 feet from the boat, how high is the cliff (to the nearest foot)? Solve the


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

Trigonometry - Draw a ray

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)

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)

Solving for Angle Beta (Trigonometry Problem - Type IV)

In the attached problem I need to solve for the unknown angle Beta. The book calls it a type IV problem and gives the procedure on how to solve for a type IV problem. I have tried to solve this problem but with no luck. I have attached the problem, the procedures to solve for the type IV and the formulas and pictue of a type I

Slid Trigonometry : Type II Pyramid

This triangular pyramid is a type II as the book puts it. Three faces are right triangles and the 4th in a diagonal plane is an oblique triangle. The book explaines that if the angle to be found is in the oblique triangle you should solve for an auxilliary angle in the third right angle which lies at the same vertex as the requi

Wave Equations : Comparison Between Circular and Square Vibrating Membranes

Please see the attached file for the fully formatted problems. Consider a circular membrane of radius a and a square membrane Assume the two membranes (i) have the same area. .... (ii) obey the same wave equation... (iii) Have the same boundary conditions phi = 0 at their boundaries. A) TABULATE (i) the 3 lowest frequen

Wave equation

Wave equation problem - show that the wave eq. u(x,t) can be expressed as 1/2((fodd(x+ct)+fodd(x-ct)) - fodd being the odd periodic extension of f(x) See attachment

Trigonometric Expressions

Please see the attached file for the fully formatted problems. 1.)Calculate: 234.1sin(1.56)/cos(.34) 2.) Is the following even or odd? Cos(sin t)

Periodic Functions via Convolution

Please see the attached file for the fully formatted problems. "Periodic Function via Convolution" Consider the periodic train of Dirac delta "functions" f(x) =.... with real period .... (a) FIND and DESCRIBE its Fourier transform F(k). What happens to F if c gets doubled? (b) Let p(x + c) = p(x) be a periodic function.

Volume of a Hypersphere : n-Tuple Integral

Please do #4. Please see the attached file for full problem description. In this project, we find formulas for the enclosed by a hypersphere in n?dimensional spaces 1 Use a double integral, and trigonometric substitution, together with Formula 64 in the Table of Integrals, to find the area of a circle with radius r 2 U

Using triangle ABC, show that the form (cos(A/2))^x is able to find side lengths.

Let ABC be a triangle. Prove that (cos(A/2))^x, (cos(B/2))^x, and (cos(C/2))^x are the lengths of a triangle for any x greater than or equal to 0. From what I have found in my books, it is impossible to solve for side lengths of a triangle using AAA b/c there is no formula to do so. It is possible to find similar triangles

Setting up trig problem

I would like to get some help in setting up this problem. I tried using the radius of the circle as one side of the triangle but have not been able to get the answer Please see the attached file for full problem description.


Find all the solutions to 5(cos x)^2 - 4cosx-1=0

Angle Determination in Triangles

I need some help understanding how to get the value of 'x'. The angle is 17 degrees and the book gives an answer of 0.90375. Please see attachment for diagram.

Pythagoras Theorem

State the lengths of the legs and hypotenuse of each triangle: (1.) 15cm(straight side) 17cm(slant side) 8cm(bottom has tiny square in it) (2.) 25m(left long slant side) 20m(right slant side) 15m bottom w/tiny square (3) 26 in.(left) 24 in. (rt) 10 in.(bottom w/ square)

Finding the Dimensions of a Form Roller

I need help setting up the triangles to solve this problem. The value of B=2.25 and the need to find the value of X. The answer of X is given as 2.0159. This problem you are given the answer and must construct the problem.