9,261 Answered Questions for the topic trigonometry

Trigonometry

11/14/23

Convert the point 18(cos(2pi/3) + i sin(2pi/3)) to the rectangular form of a complex number and simplify.
Convert the point 18(cos(2pi/3) + i sin(2pi/3)) to the rectangular form of a complex numberand simplify. (The answer should have the form a + bi with no trig functions.)
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Trigonometry Precalculus

11/12/23

Find all values of x in the interval [0, 2𝜋] that satisfy the equation. (Enter your answers as a comma-separated list.)

16 sin2(x) = 8
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Trigonometry Math

11/11/23

Solve sin^2 X+cos(2X)-cos X=0 over the domain 0º≤X<360º
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Trigonometry Math

11/11/23

Determine the general solution, in radians, for sin(2θ)sinθ+cos^2 θ=1 by solving algebraically
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Trigonometry Math

11/11/23

Determine the general solution, in radians, for 2sin B = 3tan^2 B by solving algebraically
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Trigonometry Math

11/10/23

if sinθ=-4/5 and θ is in quadrant III, determine the exact value(s) of cos(θ - pi/6)
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Trigonometry Geometry

11/10/23

Proving Concave Quadrilateral is a Parallelogram
Given quadrilateral ABCDwith all interior angles less than 180 degrees,and given that:AB is congruent to CDAngle B is congruent to angle DProve ABCD is a parallelogram
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Trigonometry Math Calculus Geometry

11/10/23

Analytical Geometry Question! (Calculus I Trigonometry & Related Rates)
Given:A rotating light is located 16 feet from a wall. The light completes one rotation every 2 seconds. Find the rate at which the light projected onto the wall is moving along the wall when the... more
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Trigonometry Math

11/10/23

Finding all dimensions of an isosceles triangle equally divided by 3?
If given an isosceles triangle with a total area of 30, and angles 30, 75, 75 (with the shortest side down), then divided by 3 horizontally (such that no piece is symmetrical, but each piece... more
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Trigonometry Algebra 2 Calculus

11/10/23

The diagram below consists of a semicircle with center Z and squares LIKE, MORE, and MATH. If the area of square LIKE is 100, what is the area of square MATH? Your answer must be exact. Show work

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Trigonometry

11/09/23

Could anyone help me answer this question

Outside temperature over a day can be modelled using a sine or cosine function. Suppose you know the high temperature for the day is 67 degrees and the low temperature of 39 degrees occurs at 3 AM.... more
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Trigonometry

11/08/23

The Law of Cosines
Two ships leave a harbor at the same time. One ship travels on a bearing S 10 degrees W at 16 miles per hour.The other ship travels on a bearing N 75 degrees E at 8 miles per hour. How far apart... more
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Trigonometry

11/08/23

what’s the area of the triangle

Dyani attempts to find the area of ABC. What is her error? Find the correct area. Round to the nearest square centimeter.side b= 12cm, side a= 14cm, angle C= 65°area= 1/2(AB)(BC)tan Carea=... more
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Trigonometry Precalculus

11/07/23

Verify the identity by converting the left side into sines and cosines. (Simplify at each step.
5 cot2(y)(sec2(y) − 1) = 5
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Trigonometry Precalculus

11/07/23

Verify the identity by converting the left side into sines and cosines. (Simplify at each step.
7 sec(x) − 7 cos(x) = 7 sin(x) tan(x)
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Trigonometry Precalculus

11/07/23

Use an inverse trigonometric function to write 𝜃 as a function of x.
right trianglehyp= 6opp= x+3adj=?
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Trigonometry Precalculus

11/07/23

Find the exact value of the expression, if possible. (If not possible, enter IMPOSSIBLE.) sin(cos−1( sqrt 3 ))
sin(cos^-1(√3))
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Trigonometry

11/06/23

A triangle has a side a = 4 cm, and angles a = 45° and B = 30°.
A triangle has a side a = 4 cm, and angles a = 45° and B = 30°.compute angle CCompute side b.
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Trigonometry

11/06/23

Find the area of a triangle with sides a = 2 cm. b = 3 cm. and c = 3 cm.
find the area of a triangle with sides a = 2 cm. b = 3 cm. and c = 3 cm.
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Trigonometry

11/06/23

A triangle has sides a = 2 ft. b = 9 in., and c = 55 cm
A triangle has sides a = 2 ft. b = 9 in., and c = 55 cmCompute angle ACompute angle B.Compute angle CCompute the area of a triangle in in3
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Trigonometry

11/06/23

David measures the angle of elevation of the peak of a mountain as 30°. while Annette. who is 2000 feet closer on a straight path. measures the angle of elevation as 45 . How high is the mountain?
David measures the angle of elevation of the peak of a mountain as 30°. while Annette. who is 2000 feet closer on a straight path. measures the angle of elevation as 45 Degrees. How high is the... more
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Trigonometry

11/06/23

A pole tilts toward the sun at an 8 angle from the vertical, and it casts a 22-foot shadow. The angle of elevation from the tip of the shadow to the top of the pole is 43. How tall is the pole?
A pole tilts toward the sun at an 8 degree angle from the vertical, and it casts a 22-foot shadow. The angle of elevation from the tip of the shadow to the top of the pole is 43 degrees. How tall... more
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Trigonometry

11/06/23

The Law of Cosines

You are on a fishing boat that leaves it's pier and heads east. After traveling for 25 miles, there is a report warning of rough seas directly south. The captain turns the boat and follows a... more
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Trigonometry Math Precalculus

11/04/23

Find the solutions of the equation in the interval [−2𝜋, 2𝜋]. Use a graphing utility to verify your results. (Enter your answers as a comma-separated list.) tan(x) = −1
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Trigonometry Math Precalculus

11/04/23

A sine curve with a period of 8𝜋, an amplitude of 5, a left phase shift of 𝜋/4, and a vertical translation down 4 units.
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