9,261 Answered Questions for the topic trigonometry

Trigonometry

12/18/21

Solve the triangle. Express the results to two decimal places.
c = 53.2, β = 48.6°, γ = 61.4°Please do put solutions so I can understand on how you do it.
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Trigonometry

12/18/21

Solve the triangle. Express the results to two decimal places.
a = 24, α = 34°, β = 71°Please do put solutions so I can understand on how you do it.
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Trigonometry

12/18/21

Two angles of a triangle and the measure of the side opposite one of them are given. Find the measure of the side opposite the other given angle, but do not use a calculator.
c = 88, α = 30°, γ = 120°Please do put solutions so I can understand on how you do it.
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Trigonometry Precalculus

12/17/21

Determine the point(s) of intersection of the graphs of y=cosx and y=cos2x on the interval xE [0,2pi]
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Trigonometry

12/17/21

Find the product z1z2 and the quotient z1 z2 . Express your answers in polar form. (Express 𝜃 in radians.) z1 = cos 𝜋 + i sin 𝜋, z2 = cos 𝜋 3 + i sin 𝜋 3
z1z2 =   Z1/Z2=  
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Trigonometry

12/16/21

A box with no top is being made out of a 20 cm by 30 cm piece of cardboard

A box with no top is being made out of a 20 cm by 30 cm piece of cardboard by cutting equal squares of side length x from the corners and folding up the sides. Determine an algebraic model for the... more
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Trigonometry

12/16/21

trigonometric functions
Ana is riding a Ferris wheel. Her height above the ground, ht (in metres) after t seconds can be modelled by the equation ht=−4cos⁡2.4t+6 How long does it take for Ana to make 5 revolutions on... more
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Trigonometry

12/15/21

Proof the Pythagorean theory
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Trigonometry Precalculus Algebra

12/15/21

Ferris wheel problem
the lowest point of a ferris wheel is 2.5 meters off the ground, and it's radius is 15 m. It's takes one complete revolution every 30 seconds. Starting at the lowest point, find a cosine function... more
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Trigonometry Precalculus

12/14/21

We are told that tanθ=1, and that 𝜃 is in Quadrant I. From this we know...
sin?cot?csc?is it one of these? and if so How?
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Trigonometry Precalculus

12/14/21

We are told that tanθ=1, and that 𝜃 is in Quadrant II. From this we know...
csc ?sin?Cot?is it one of these? and if so how?
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Trigonometry

12/14/21

Solve the equation on the interval [0,2𝜋). NO CALCULATOR.

Solve the equation on the interval [0,2𝜋). 2cos(^2)𝑥 + 3cos𝑥+1 = 0
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Trigonometry

12/14/21

Find all solutions of the equation below. No calculator.

Find all solutions of the equation below. tan𝑥sin𝑥+tan𝑥 = 0 Please show workings. Thank you.
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Trigonometry

12/14/21

Apply a sum or difference formula to find the exact value of the expression. No calculator, leave in exact form.
Apply a sum or difference formula to find the exact value of the expression. sin𝜋/12
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Trigonometry

12/14/21

Verify the identity. No calculator.

Verify the identity. 1−cos2𝜃/sin2𝜃 = tan𝜃 Please show workings. Thank you.
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Trigonometry

12/14/21

Use a sketch of a triangle to find the exact value of the expression.
Use a sketch of a triangle to find the exact value of the expression. tan[sin^−1 (−1/3)] =
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Trigonometry

12/14/21

No calculator, leave in exact form. Determine the amplitude, period and phase shift of the function.
Determine the amplitude, period, and phase shift of the function. Then graph one period of the function. Show your steps (basic graph and all transformations). 𝑓(𝑥)=sec(2𝑥+𝜋)+1 a.)... more
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Trigonometry

12/14/21

No calculator, leave in exact form. Determine the amplitude, period and phase shift of the function.
Determine the amplitude, period, and phase shift of the function. Then graph one period of the function. Show your steps (basic graph and all transformations). ... more
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Trigonometry

12/14/21

No calculator, leave in exact form. Determine the amplitude, period and phase shift of the function.
Determine the amplitude, period, and phase shift of the function. Then graph one period of the function. Show your steps (basic graph and all transformations). 𝑓(𝑥)=3cos(𝑥−𝜋/4)a.)... more
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Trigonometry

12/14/21

No calculator allowed, leave in exact form. Use the unit circle values to find the value of the trigonometric function.
Use the unit circle values to find the value of the trigonometric function. Show all work. You must draw and correctly label the angle/triangle in the correct quadrant. csc(-11pi/3)Hello! I... more
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Trigonometry

12/14/21

Show that: sinxcos^2x-sinx=-sin^3x
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Trigonometry

12/14/21

For what value of θ does sin 2θ = cos (θ + 30)
I need this answer for some homework, but I don't understand how to do it exactly. I'm in trigonometry.
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Trigonometry Trig

12/14/21

Given sin(b)= 0.2183 and b is in quadrant 2, find approx. values of sin(2b) and cos(b/2)
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Trigonometry Trig

12/13/21

How do I find the component form of a vector, given magnitude and angle?

For example: ||v|| = 9sqrt3 when drawn in standard position and makes a 60deg angle with the negative x-axis, and lies in quadrant 3
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Trigonometry

12/13/21

Write trig function given features

Write a sine function that has a midline of 3, an amplitude of 2 and a period of 7pi/6
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