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(31/2)sinx+cosx

# Find value

sin(x+y)/sin(x-y)=(a+b)/(a-b) then tanx/tany=?

12sinΘ-9sin2Θ

# what is the height of the building?

A surveyor determines that the angle of elevation to the top of a building from a point on the ground is 26.2 degrees. He then moves back 53.9 feet and determines that the angle of elevation is 18...

# How to This Eqa

Cos2 (2x) - cos2 (6x) = Sin(4x)sin(8x)

# Prove That

tan4x=(4tanx(1-tan2x))/(1-6tan2x+tan4x)

# How to Prove

Sin2 (6x) - Sin2 (4x) = sin(2x)Sin(10x)

# What is the tangent function?

I'm not asking what it does, and I'm not looking for "tan(angle)=opposite leg/adjacent leg". I'm asking what the actual function is. For instance, using degrees (not radians) tan(22.5)=20...

# sin a+cos a+tan a+sec a+cosec a+cot a=7.then prove that sin 2a is the root of x^2-44x+36

I am not havin g any idea to solve it.

# if secA=17/8 and cosecB=5/4 then sec(A+B) can have value ?

if secA=17/8 and cosecB=5/4 then sec(A+B) can have value ?

# Find the complex cube roots of 8(cos(4pi/5) + isin(4pi/5)

I just need help. If someone could give me the answer as well as explain it, that would be amazing

# Convert the angle 35°58'38" to decimal degrees and round to the nearest hundredth of a degree.

Help me and show work please :)

# what is the general solution (in degrees) for tan 4x = cot x? (please show working)

trigonometry, general solution

# A 172 ft tall tree casts a shadow on the ground. If the angle of elevation is 49°, find the distance from the top of the tree to the tip of the shadow.

Angle of Elevation question

# Choose the point on the terminal side of -210°.

THE ANSWER CHOICE    (-1, 1) (-1, square root of three) (square root of three, -1) (negative square root of three, 1)     HELP ME...

# ship A is 29 miles from the lighthouse and ship B is 48 miles from the lighthouse the angle between the sightings is 60 degrees how far is ship A from ship B?

How far is ship A  from ship B?

# Ship a is 29 miles from the lighthouse, ship b is 48 miles, angle is 60. How far is ship a from b

ship A is 29 miles from the lighthouse ship b is 48 miles, angle is 60. how far is ship a from b?