Find graphically the tensions in the cables

An object of weight 20kN is supported from above by two cables inclined at 40 and 70 degrees to the horizontal as shown (please see attachment)

Solve analytically static force systems involving no more than 3 coplanar forces.

Please see the attached file for full problem description.

Prove the trigonometric identity.

Prove that [sin θ/(1 - cos θ)] - [(1 + cos θ)/sin θ] =0 Provide reasons (identities, operations, etc.) for each step in the proof. Include any thoughts, ideas or strategies used to prove the identity.

Word Problem : Distance and Speed

A man walking his dog along a straight country road spots a friend one mile away. His dog sprints ahead to greet her. When the dog reaches her it turns back to the man. when it reaches him it sprints back to the woman. The process continues until the two people meet. If each person walks at 2 MPH and the dog runs at 8 mph, how f ...continues

Verify the trigonometric identities.

Verify the following identities, show all work secx(1-sin^2x)=cosx tanx + cotx=secxcscx cotx/cosx=cscx csc^2x(1-cos^2x)=1 cosxcotx + sinx=cscx

Word Problem : Speed and Distance

Ryan starts jogging home at the rate of 6km/hr. After reaching Harbor Front, he begins jogging back home. Because of fatigue, his speed for the return trip decreases to 4.5km/h and takes 1 hour longer. Determine the total distance that Ryan jogged.

Trigonometric Identities : Calculate cos(3u) in terms of cos(u).

Calculate cos(3u) in terms of cos(u).

Trigonometric Functions : Explain sine, cosine, tangent, cotangent functions and inverses.

Please explain sine, cosine, tangent, cotangent functions and inverse trigonometeric functions like arcsin, arccos, arctan and arccot functions with graphics.

Evaluating Trig functions

Use the given values to evaluate the remaining trig functions. sin(-x) = -1/3, tan x = -sq. root of 2/4 Please show me the complete steps to evaluate this problem.

Trigonometry : Angles from Sines

Find two values of theta where sin theta = .3907?