Trigonometry Answers

A circle with radius of 63,010 μm is centered at the origin of a
CCS. Angles α and β are in standard position, α = 1.100 radians, and β =
1.257 radians.
a) What is the length of the arc that is captured between α and β?

From the top of the light house, it is observed that a ship is sailing directly towards it and the angle of depression of the ship changes from 30 to 45 degree in 10 minutes. Assuming that the ship is sailing with uniform speed; calculate in how much more time will the ship reach the light house.

A boat is headed at 115° and is traveling downstream at 28 mph. The stream is flowing S38°E at 11 mph. In what direction is the boat traveling? At what rate can it travel in still water?

A boat is headed at 115° and is traveling downstream at 28 mph. The stream is flowing S38°E at 11 mph. In what direction is the boat traveling? At what rate can it travel in still water?

(sqrt3)tanx-2 sin x tan x=0 radian solutions

If tan(A - 2B) = cot(2A - B) and tan(A + 2B) = cot(2A + B) , show both A and B are multiple of (π/6) and if A is odd multiples then B is even multiples.

a ship s is slighted from the lighthouse B and U which are 16 km apart. if angle SBU = 46 and angle SUB = 65. find the distance from s to the nearest lighthouse.

verify the identities.
sin^4 x- cos^4 x= 2sin^2 x- 1

5. Emily is standing on a bridge, looking down at a boat on the river. She knows that the bridge is 12m high, and estimates that the angle of depression between her and the boat is 55. How far is the boat from the base of the bridge, to the nearest tenth of a metre?

sin pi/3 + (1/2)sin 2pi/3 + (1/3) sin 3pi/3 + ................... infinity