9,261 Answered Questions for the topic trigonometry

Trigonometry Precalculus

02/17/23

Quick?!?!!????!?
in  the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a fraction or a... more
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Trigonometry Math

02/16/23

How can I solve the trigonometric identity tanA+cotA=2cosec2A?
For starters, I’m not sure which side should be simplified. RHS could have the double angle formula applied while the LHS has more terms. I’ve tried working through multiple ways and all seem to... more
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Trigonometry Precalculus

02/16/23

QUICK HELP?!? ?!?!

please show work in the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a... more
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Trigonometry Precalculus

02/16/23

Can someone explain?!?!?!
in the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a fraction or a... more
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Trigonometry Precalculus

02/16/23

Can someone explain?!?!?!!?
The following is the work for using the unit circle in find the exact value of sin 17π/3a)which step has the first error?b)explain the error1)find the coterminal angle17π/3-2π=5π/32) using the unit... more
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Trigonometry

02/16/23

QUICK HELP ?!?!?
following is the work for using the unit circle in find the exact value of sim 17π/3a)which step has the first error?b)explain the error1)find the coterminal angle 17π/3-2π=5π/32) using the unit... more
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Trigonometry Precalculus

02/15/23

I need help with another trigonometry question!
Find the distance along an arc on the surface of the earth that subtends a central angle of 10 minutes (1 minute = 1/60 degree). The radius of the earth is 3960 miles. Round to the thousands.
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Trigonometry Math

02/15/23

I need help with a trigonometry question
A tower is located 375 feet from a building. From a window in the building, a person determines that the angle of elevation to the top of the tower is 27° and that the angle of depression to the... more
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Trigonometry Math Precalculus

02/14/23

What is the principle value of
I really don't get this. Please provide explanation/step-by-step.
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Trigonometry Math Precalculus

02/14/23

What is the principle value of

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Trigonometry

02/13/23

Trigonometry help
If tan(θ)=85 , where 0≤θ≤2π. Largest positive value of θ
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Trigonometry

02/11/23

simultaneous equations with vector addition
hi. I need help with solving these equations please for r, θ and φrcos(0)cos(307.8) = 648cos(φ)cos(θ) + 88cos(28)cos(242)rcos(0)sin(307.8) = 648cos(φ)sin(θ) + 88 cos(28)sin(242)rsin(0) = 648sin(φ)+... more
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Trigonometry

02/11/23

A point P is often identified in mathematics using the notation P ( x , y ) to reference a point at coordinates ( x , y ) . If P ( x , 8 9 ) is on the unit circle in quadrant II, then x =

X=?
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Trigonometry Math Algebra 1

02/11/23

If a ball is thrown straight up into the air with an initial velocity of 90 ft/s...?
if a ball is thrown straight up into the air with an initial velocity of 90 ft/s, its height in feet after t second is given by y=90(t)-16(t)squared. Find the average velocity for the time period... more
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Trigonometry

02/10/23

Find the coordinates of the point P at an angle of 225 degrees on a circle of radius 4.9
Find the coordinates and round your answers to the three decimal places
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Trigonometry Math Algebra 2

02/10/23

solve cos(3x)+cos(x)=0
my answer key says the right answer is 90°+180°k, 45°+90°k but I'm confused about what precisely the k stands for and how they got there
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Trigonometry Precalculus

02/08/23

how to plot the graph for this function: Y=2cos2(χ+π)+1

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Trigonometry Precalculus

02/07/23

how to transform and plot trigonometric functions
Please explain how to approach the transformation of trigonometric functions
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Trigonometry

02/06/23

An observer in a lighthouse 350 feet above sea level observes two ships directly offshore. The angles of depression to the ships are 𝛽 = 7° and 𝜃 = 9.5°.

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Trigonometry Math

02/05/23

Find the exact value of the trigonometric expression when sin(u) = − 12/13 and cos(v) = − 15/17 . (Both u and v are in Quadrant III.) cos(u + v)
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Trigonometry

02/04/23

WORD PROBLEM HELP
You are skiing down a mountain with a vertical height of 1150 feet. The distance from the top of the mountain to the base is 2300 feet. What is the angle of elevation from the base to the top of... more
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Trigonometry

02/04/23

Construct an appropriate triangle to find the missing values. (0° ≤ 𝜃 ≤ 90°, 0 ≤ 𝜃 ≤ 𝜋/2)
Construct an appropriate triangle to find the missing values. (0° ≤ 𝜃 ≤ 90°, 0 ≤ 𝜃 ≤ 𝜋/2)function tan𝜃 (deg) 30°𝜃(rad): ________funtion value: __________
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Trigonometry Math Precalculus

02/02/23

Which of the following are equivalent to the function y=4cos(x-2)
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Trigonometry Math Precalculus

02/02/23

Which of the following are vertical asymptotes of the function y=2 cot(3x)+4?
Which of the following are vertical asymptotes of the function y=2cot(3x)+4
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Trigonometry

02/02/23

Find value of tan^3x-cot^3x
tan x - cot x = 1 . Find the value of tan^3x-cot^3x.
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