9,261 Answered Questions for the topic trigonometry

Trigonometry Math

12/07/21

Ferris Wheel Trigonometry Problem [URGENT]
You are in an amusement park with your friends. They wish to ride the Ferris wheel but you opted not to ride with them. After loading your friends who are the first in line, the wheel rotates 45˚... more
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Trigonometry

12/06/21

Given 𝑧1 =3(cos28°+𝑖sin28°) and 𝑧2 =9(cos14°+𝑖sin14°), find each of the following. Leave your answers in polar form.

Given 𝑧1 =3(cos28°+𝑖sin28°) and 𝑧2 =9(cos14°+𝑖sin14°), find each of the following. Leave your answers in polar form.a) 𝑧1𝑧2 b) 𝑧1/𝑧2Hello! I am so confused about this problem please help me.
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Trigonometry

12/06/21

Convert each of the following equations from rectangular form to polar form. Solve for r.

a) 𝑦=7 b) (𝑥−3)^2 +𝑦^2 =9Hello! I am confused about these two problems and I need help solving them, please!
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Trigonometry

12/06/21

tanθ +1= 0 Find the degrees
i just need to find the degrees
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Trigonometry

12/06/21

Convert each of the following equations from polar form to rectangular form.

a) 𝑟^2 =64 b) 𝑟=5cos𝜃.Hello! I need help solving these two problems, please!
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Trigonometry

12/06/21

2sinθ −1= 0 Find the degrees
i just need to find the degrees thats it
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Trigonometry

12/06/21

2sinθ = −3 Find the degrees that fit.

in degrees, please. i already know one answer is 300 but i need the other one
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Trigonometry

12/06/21

Convert each of the following as indicated.

a) Convert from polar to rectangular coordinates: (4,𝜋/3) b) Convert from rectangular to polar coordinates: 4−4𝑖Hello! Please help me solve these two problems. I... more
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Trigonometry

12/06/21

Given 𝑧=−3+2𝑖, find |𝑧| and plot 𝑧 in the complex plane.
Given 𝑧=−3+2𝑖, find |𝑧| and plot 𝑧 in the complex plane.Hello! I am confused about what exactly I need to do about this problem, please help me solve and graph :)
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Trigonometry

12/06/21

Identify the type of graph and then sketch the graph of the given polar equation
𝑟=6−6cos𝜃 of graph: _______________________Hello! I am having big trouble identifying the graph and especially the part where I have to graph it. What do I do? What does the sketch look like?
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Trigonometry

12/06/21

Identify the type of graph and then sketch the graph of the given polar equation

𝑟=3sin𝜃 Type of graph: Hello! I am having big trouble identifying the graph and especially the part where I have to graph it. What do I do? What does the sketch look like?
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Trigonometry

12/06/21

Perform each of the following operations. Make sure to write your answers as complex numbers.

a) (2−5𝑖)^2 b) 7−2𝑖 /1+4𝑖
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Trigonometry

12/06/21

Simplify each of the following. Make sure to write your answers as complex numbers.

a) (7+3𝑖)+(4−7𝑖) b) (−3+6𝑖)−(10−5𝑖)
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Trigonometry

12/06/21

Find all solutions to the equation in the interval [0,2pi): sin^2x = 2-2cosx
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Trigonometry

12/06/21

write the trigonometric expression as an algebraic expression containing u and v. sin(tan^-1(u)+tan^-1(v)
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Trigonometry

12/06/21

Find the exact value of tan(a+b) when cosa= 1/3 and sinb= -1/2
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Trigonometry Math Calculus Physics

12/06/21

A 7.6 −kg box having an initial speed of 4.5 m/s slides along a rough table and comes to rest.
A 7.6 −kg−kg box having an initial speed of 4.5 m/sm/s slides along a rough table and comes to rest.Estimate the total change in entropy of the universe. Assume all objects are at room... more
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Trigonometry Math Science Calculus

12/06/21

By what factor will the rms speed of gas molecules increase if the temperature is increased from 30 ∘C to 130 ∘C?
By what factor will the rms speed of gas molecules increase if the temperature is increased from 30 ∘C∘C to 130 ∘C∘C?
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Trigonometry Math Science Calculus

12/06/21

A storage tank at STP contains 18.9 kg of nitrogen (N2).What is the volume of the tank?
A storage tank at STP contains 18.9 kgkg of nitrogen (N2)(N2).What is the volume of the tank?What is the pressure if an additional 14.2 kgkg of nitrogen is added without changing the temperature?
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Trigonometry

12/06/21

Find the area sector

Find the area sectorRadius 12Aneglected 120 degrees
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Trigonometry Precalculus

12/05/21

Precal- Trigonometry (please help)
Part a: Use an Addition or Subtraction Formula to simplify the equation.sin(2𝜃) cos(𝜃) − cos(2𝜃) sin(𝜃) = √2/2Part b: Find all solutions in the interval [0, 2𝜋). (Enter your answers as a... more
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Trigonometry Trig

12/04/21

Solve using reduced row echelon form. 4x-y-3z = 1 8x+y-z=5 2x+y+2z=5
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Trigonometry Precalculus

12/04/21

Rewrite the given exponential form of the complex number in its complex polar form using Euler's formula
reθi=rcosθ+rsinθi
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Trigonometry Precalculus

12/04/21

Given the vector → u = ⟨ 4 , − 4 ⟩

find the magnitude and angle in which the vector points (measured counterclockwise from the positive x-axis, 0≤θ<2π)
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Trigonometry Precalculus

12/04/21

Let → a = ⟨ − 4 , 3 , 5 ⟩ and → b = ⟨ 1 , − 2 , 4 ⟩ . Find → a ⋅ → b .
How can I find a and b?
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