9,261 Answered Questions for the topic trigonometry

Trigonometry

06/20/22

The wheels of a car have radius 13 in. and are rotating at 800 rpm. Find the speed of the car in mi/h.
I have tried entering in 62, 61.8, and 61.9 as answers but all were wrong.
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Trigonometry

06/20/22

Find the indicated angle 𝜃. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 10, c = 7, and ∠C = 35°. )
Round your answer to one decimal place. Assume that 𝜃 is greater than 90°.
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Trigonometry

06/20/22

Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place.

Below, enter your answers so that ∠A1 is smaller than ∠A2.)b = 28,    c = 32,    ∠B = 24°FIND: ∠A1 ∠A2 ∠C1∠C2a1a2
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Trigonometry Math Precalculus

06/20/22

Find your own values that prove that tan(u-v) ≠ tan u - tan v. Show your work and explain why you chose these values.
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Trigonometry

06/20/22

2 cos2(𝜃) = 2 − cos(2𝜃)
Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2𝜋). (Enter your answers as a comma-separated list.).
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Trigonometry

06/19/22

100-point tests, Erica has scored 94, 82, and 91 on the first three.

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Erica has scored 94, 82, and 91 on the first three. What range of scores on the... more
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Trigonometry Math

06/19/22

Determine the sinusoidal function
A sinusoidal function has a minimum located at(-1,10), and a maximum located at (3, 22). Determine a possible equation to model this functionusing sine as the base function and another possible... more
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Trigonometry Math

06/18/22

Determine the sinusoidal function

A sinusoidal function has a minimum located at(-1,10), and a maximum located at (3, 22). Determine a possible equation to model this functionusing sine as the base function and another possible... more
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Trigonometry Math

06/16/22

Hi could anybody help me how to find the angle of elevation pls.Trigonometry problem.
To determine the cloud height at night, many small airport have a spot light that shines on the clouds. The angle the light beam makes with the ground is 70. An observer location on the ground 300m... more
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Trigonometry

06/16/22

Find all angles θ that are solutions of the equation. Express the solutions in degree measurement.
2 cos (3θ) sin (2θ) − sin (2θ) = 0
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Trigonometry

06/16/22

Find all angles θ that are solutions of the equation. Express the solutions in degree measurement.
sqrtθ sec(θ/2)+ 2 = 0
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Trigonometry

06/16/22

Find all angles θ that are solutions of the equation. Express the solutions in degree measurement.
cot 3θ = sqrt3
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Trigonometry

06/16/22

Find the solution set of each equation if 0° ≤ θ < 360°. (Please explain it with proper solutions)
15 (sin 2θ)^2 + sin 2θ − 2 = 0
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Trigonometry

06/16/22

Find the solution set of each equation if 0° ≤ θ < 360°. (Please explain it with proper solutions)
3(cot θ)^2 + 2 cot θ − 4 = 0
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Trigonometry

06/16/22

Find the solution set of each equation if 0° ≤ θ < 360°. (Please explain it with proper solutions)
6(tan θ)^2 − tan θ − 12 = 0
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Trigonometry

06/16/22

Find the solution set of each equation if 0° ≤ θ < 360°. (Please explain it with proper solutions)
(sin θ)^2 + 2 sin θ + 1 = 0
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Trigonometry

06/15/22

The first aid hut is in the shape of an A-frame cabin with 70-degree angles at the 30-foot base. Determine the slant height of the roof.
The first aid hut is in the shape of an A-frame cabin with 70-degree angles at the 30-foot base. Determine the slant height of the roof.
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Trigonometry

06/12/22

Use a half-measure identity to find the indicated function value.
tan t = −5/12 and sin t > 0; find tan 1/2t and sec 1/2t
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Trigonometry

06/12/22

Use a half-measure identity to find the indicated function value.
sin t = 24/25 and 1/2π < t < π; find cos 1/2t and cot 1/2t
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Trigonometry

06/12/22

Use a half-measure identity to find the indicated function value.
cos t = 1/3 and 0 < t < 1/2π; find sin 1/2t and csc 1/2t
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Trigonometry

06/12/22

Find (a) sin 2t, (b) cos 2t, (c) tan 2t, and (d) the quadrant containing 2t.
sin t = −7/25, cos t > 0
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Trigonometry

06/12/22

Find (a) sin 2t, (b) cos 2t, (c) tan 2t, and (d) the quadrant containing 2t.
cos t = −5/13, 1/2π < t < π
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Trigonometry

06/12/22

Find (a) sin(α + β), (b) cos(α + β), and (c) the quadrant containing α + β.
tan α = 3/10, π < α <3/2π; tan β = −5/4, 1/2π < β < π
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Trigonometry

06/12/22

Find (a) sin(α + β), (b) cos(α + β), and (c) the quadrant containing α + β.
sin α = −3/5, α in the fourth quadrant; cos β = −12/13, β in the third quadrant
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Trigonometry Math

06/10/22

Find the height of the mountain.
From one point on the ground, the angle of elevation of the peak of a mountain is 11°, and from a point 1 000 m closer, the angle of elevation is 15. Both points are due east of the mountain. Find... more
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