Trigonometry Answers

tan x+sin x sec x- sin x cos x/sec x-csc x=tan x+sin x sec x

simplify completely the trigonometric expressiong show all work neatly and in order
Tanx sinx secx

Given that cos a = -3/12 and a is an angle in Quadrant II and that sin Beta = 3/5 is an angle in Quadrant I. Determine

a) cos (a + Beta)

b) sin (Beta - a)

Expert sir try to solve the following question.
A light house is 300 meter high from the sea level.from the top of the light house the angle of depression of two boats are 30 and 45 degrees .If the line joining the boats passing through the foot of the light house find the distance between the boats when they are on the same side of the light house. (my answer is 300-(100/sqrt(3)) but book answer is "300-100srt(3)" Best wishes
MARIA JAN

Dear Expert Hi, please solve the following question .
Height of a hill from the sea level is 68 meter.From the top of the hill find the angle of depression of a boat when the horizontal distance between the ship and the boat is 68sqrt(3) meter. I will be patient for your reply .best wishes
Maria Janert Hi,

A line AB along one bank of a stream is 562.0 ft. long,and C is a point on the opposite bank.The angle ABC is 48°36'.Find the width of the stream.

A shore station at point A is 5280 ft. from another at point B.Find the distance from each of the shore stations to an enemy ship at point C if angle ABC is 83°37' and angle BAC is 85°1'.

A railway train is travelling on a curve of 750m radius at the rate of 30km/hr,through what angle has it turned in 10 seconds.

Given that cos a = -12/3 and a is an angle in Quadrant II and that sin Beta = 3/5 is an angle in Quadrant I. Determine

a) cos (a + Beta)

b) sin (Beta - a)

If tan x = .76 and cos x = .22, what is sin x?



If sin x = .42, what is cos x?