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Trigonometry

11/20/21

Write an equation for the ellipse given only the center (-1,1)

Book answer is (x-1)2/4 + (y-1)2=1, but I have no idea where the 4 came from because I am not given foci or vertices. The major axis is on the x-axis (horizontal on the graph)

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Trigonometry

11/20/21

Cot²x-csc²x in p pythagorean identities

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Trigonometry

11/19/21

a rectangular base that is 300 cm long and 110 cm wide. The front and back faces are vertical, but the left and right faces are slanted at 30° from the vertical and measure 110 cm by 170 cm.

A fish tank in an avant-garde restaurant is in the shape of a parallelepiped with a rectangular base that is 300 cm long and 110 cm wide. The front and back faces are vertical, but the left and... more

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Trigonometry

11/19/21

I need help with trig ASAP !

We know the following values.sinA=4/5cosB=√3/2Give the exact value of Sin(A+B)

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Trigonometry

11/19/21

I need help asap!!

Find all of the answers on the interval [0,2π) 2cos2x+cosx=0Give exact answers.

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Trigonometry

11/19/21

I need help ASAP!!

Let z be the complex number z=2(cos30∘+isin30∘) . a. Write the complex number in standard form. You may give an exact value or a decimal rounded to the nearest thousandth. b. Use DeMoivre's... more

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Trigonometry

11/19/21

Find the exact value of cos2θ given that sinθ=25

Can anyone help me? I need an answer ASAP!

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Trigonometry

11/19/21

Find the area of ΔPQR. P(3, −2, 6), Q(−1, −4, −6), R(3, −8, 6)

Find the area of ΔPQR.P(3, −2, 6), Q(−1, −4, −6), R(3, −8, 6)

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Trigonometry

11/19/21

For the given vectors u and v, find the cross product u × v. u = 7i − j, v = −7j + k

For the given vectors u and v, find the cross product u × v.u = 7i − j, v = −7j + ku × v =

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Trigonometry

11/19/21

Two vectors u and v are given. u = 5j + 3k, v = −i + 2k

Two vectors u and v are given.u = 5j + 3k, v = −i + 2k(a) Find a vector orthogonal (perpendicular) to both u and v.(b) Find a unit vector orthogonal (perpendicular) to both u and v.

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Trigonometry

11/19/21

The lengths of two vectors u and v and the angle 𝜃 between them are given. Find the length of their cross product, |u ⨯ v|. (Round your answer to three decimal places.)

The lengths of two vectors u and v and the angle 𝜃 between them are given. Find the length of their cross product, |u ⨯ v|. (Round your answer to three decimal places.)|u| = 0.24, |v| = 1.25, 𝜃 =... more

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Trigonometry

11/19/21

Find all complex roots in polar form cube roots of 1+i

book answer is 6√2(cos15°+i sin15°), 6√2(cos135°+i sin135°), and 6√2(cos255°+i sin255°)

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Trigonometry

11/18/21

For each of the equations below, write the general solution, in positive radians. Use mathematics to explain how you determined your answers.

A) sin x + 1= 1.456B) 9cos^2 x + 1 =8

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Trigonometry

11/18/21

For what angle measure(s) between 0 and 2pi is 2cos^2x - cosx=1? Use mathematics to explain how you determined your answers.

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Trigonometry

11/18/21

For which value of x is y=csc x undefined?

A) pi/4B) pi/2C) 3D) 2pi

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Trigonometry

11/18/21

To the nearest thousandths, what is cos(sin^-1(0.671))

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Trigonometry

11/18/21

If m<A=56, m<C=70 and c=14. To the nearest thousandths of a unit, how long is side a?

A) 15.869B) 14.346C) 12.351D) 12.053

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Trigonometry

11/18/21

Which phrase best describes y=csc x?

A) Even functionB) Odd FunctionC) Neither an even nor an odd functionD) Both an even and an odd function

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Trigonometry Math Calculus Mathematics

11/18/21

Find the maximal area of a right triangle with hypotenuse of length 5.

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Trigonometry

11/18/21

Find an equation of the parabola with vertex at (0,0) and the focus (0,-4)

Help, please and thank you!

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Trigonometry

11/17/21

A boat travels 45 miles in a northeast direction and then turns straight east and travels for 75 miles. Find the straight-line distance and the direction from where the boat began to where it ended.

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Trigonometry Cotangent Sinusoidalfunction

11/17/21

State the amplitude, period, and phase shift (if possible) of y=-3cot(4x-2π).

I know that there is no amplitude but I am not sure about the phase shift or how to find the period.

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Trigonometry Calculus Physics Functions

11/17/21

A cylindrical can, open at the top, is to hold 470 cm^3 of liquid. Find the height and radius that minimize the amount of material needed to manufacture the can.

A cylindrical can, open at the top, is to hold 470 cm^3 of liquid. Find the height and radius that minimize the amount of material needed to manufacture the can. Enter your answer with rational... more

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Trigonometry Math Geometry Analytic Geometry

11/17/21

Trigonometry, Conic Section Problem

Let be an element of the solution set of the system above. Find the equation of the line containing and for all such .Solve the problem algebraically.

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Trigonometry

11/17/21

Wheels of an engine is 13 inch in diameter, and the pulley is 5 inches in diameter2. If the shafts of the drive wheel and the pulley are 2 feet apart, what length of belt is required to join them

Book answer is 76.94 inches, but I don't know how to get that answer.

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Write an equation for the ellipse given only the center (-1,1)

Cot²x-csc²x in p pythagorean identities

a rectangular base that is 300 cm long and 110 cm wide. The front and back faces are vertical, but the left and right faces are slanted at 30° from the vertical and measure 110 cm by 170 cm.

I need help with trig ASAP !

I need help asap!!

I need help ASAP!!

Find the exact value of cos2θ given that sinθ=25

Find the area of ΔPQR. P(3, −2, 6), Q(−1, −4, −6), R(3, −8, 6)

For the given vectors u and v, find the cross product u × v. u = 7i − j, v = −7j + k

Two vectors u and v are given. u = 5j + 3k, v = −i + 2k

The lengths of two vectors u and v and the angle 𝜃 between them are given. Find the length of their cross product, |u ⨯ v|. (Round your answer to three decimal places.)

Find all complex roots in polar form cube roots of 1+i

For each of the equations below, write the general solution, in positive radians. Use mathematics to explain how you determined your answers.

For what angle measure(s) between 0 and 2pi is 2cos^2x - cosx=1? Use mathematics to explain how you determined your answers.

For which value of x is y=csc x undefined?

To the nearest thousandths, what is cos(sin^-1(0.671))

If m<A=56, m<C=70 and c=14. To the nearest thousandths of a unit, how long is side a?

Which phrase best describes y=csc x?

Find the maximal area of a right triangle with hypotenuse of length 5.

Find an equation of the parabola with vertex at (0,0) and the focus (0,-4)

A boat travels 45 miles in a northeast direction and then turns straight east and travels for 75 miles. Find the straight-line distance and the direction from where the boat began to where it ended.

State the amplitude, period, and phase shift (if possible) of y=-3cot(4x-2π).

A cylindrical can, open at the top, is to hold 470 cm^3 of liquid. Find the height and radius that minimize the amount of material needed to manufacture the can.

Trigonometry, Conic Section Problem

Wheels of an engine is 13 inch in diameter, and the pulley is 5 inches in diameter2. If the shafts of the drive wheel and the pulley are 2 feet apart, what length of belt is required to join them

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