7,498 Answered Questions for the topic trigonometry

Trigonometry

2h

Given 𝑧1 =3(cos28Β°+𝑖sin28Β°) and 𝑧2 =9(cos14Β°+𝑖sin14Β°), find each of the following. Leave your answers in polar form.

Given 𝑧1 =3(cos28Β°+𝑖sin28Β°) and 𝑧2 =9(cos14Β°+𝑖sin14Β°), 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.
Trigonometry

3h

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

a) 𝑦=7 b) (π‘₯βˆ’3)^2 +𝑦^2 =9Hello! I am confused about these two problems and I need help solving them, please!
Trigonometry

3h

tanΞΈ +1= 0 Find the degrees

i just need to find the degrees
Trigonometry

3h

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

a) π‘Ÿ^2 =64 b) π‘Ÿ=5cosπœƒ.Hello! I need help solving these two problems, please!
Trigonometry

3h

2sinΞΈ βˆ’1= 0 Find the degrees

i just need to find the degrees thats it
Trigonometry

3h

2sinΞΈ = βˆ’3 Find the degrees that fit.

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

3h

Convert each of the following as indicated.

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

3h

Given 𝑧=βˆ’3+2𝑖, find |𝑧| and plot 𝑧 in the complex plane.

Given 𝑧=βˆ’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 :)
Trigonometry

3h

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

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

3h

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

a) (7+3𝑖)+(4βˆ’7𝑖) b) (βˆ’3+6𝑖)βˆ’(10βˆ’5𝑖)
Trigonometry Math Science Calculus

15h

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?
Trigonometry

17h

Find the area sector

Find the area sectorRadius 12Aneglected 120 degrees
Trigonometry Precalculus

1d

Precal- Trigonometry (please help)

Part a: Use an Addition or Subtraction Formula to simplify the equation.sin(2πœƒ) cos(πœƒ)Β βˆ’Β cos(2πœƒ) sin(πœƒ) = √2/2Part b: Find all solutions in the interval [0, 2πœ‹). (Enter your answers as a... more
Trigonometry Trig

1d

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

Trigonometry Precalculus

2d

Rewrite the given exponential form of the complex number in its complex polar form using Euler's formula

reΞΈi=rcosΞΈ+rsinΞΈi
Trigonometry Precalculus

2d

Given the vector β†’ u = ⟨ 4 , βˆ’ 4 ⟩

find the magnitude and angle in which the vector points (measured counterclockwise from the positiveΒ x-axis,Β 0≀θ<2Ο€)
Trigonometry

2d

Double Trigonomentry

two fire towers are 40 kilometers apart. Tower B is due east of Tower A. A fire is spotted from both towers. From tower A the fire is E 21 degrees North and from Tower B the fire is W 38 degrees... more
Trigonometry

2d

How Do I solve this problem?

A 26.5 foot pole is secured to the ground by support wires. Wire A has an angle of depression of 28 , and wire B has an angle of depression of 53.
Trigonometry

3d

Solve Please as soon as possible

cube roots of 𝑧 in polar form where 𝑧=2(cos(105∘)+𝑖sin(105∘)).Write the complex number 5βˆ’3𝑖 in polar form, π‘Ÿ(cos(πœƒ)+𝑖sin(πœƒ)), with π‘Ÿ>0,0β‰€πœƒβ‰€2πœ‹.

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