9,261 Answered Questions for the topic trigonometry

Trigonometry Precalculus

03/04/22

Trigonometry Precalculus Triangle
Given a = 10 and B = 150° in triangle ABC, determine the values of b for which A has(a) exactly one value(b) two possible values(c) no value.Show your work.
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Trigonometry

03/04/22

Prove the following

cosec 2A + cosec 4A + cosec 8A = cot A — cot 8A
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Trigonometry

03/04/22

solve the equation step by step-
Find one positive and one negative coterminal angle for each: 42° 510° -390° 612.34° 141° 330° 1145°
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Trigonometry Math Calculus

02/28/22

Find all solutions of 4sin(x)= sin (x)-2 in the internval [0,360).
Please whow work, appreciate it.
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Trigonometry

02/28/22

What is 2 cos(3x) = √2. Find all Solutions.
I don't even know where to start, please show work:)
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Trigonometry Calculus

02/27/22

You are given that cos(A)=−513, with A in Quadrant III, and sin(B)=513, with B in Quadrant I. Find sin(A−B)
You are given that cos(A)=−513, with A in Quadrant III, and sin(B)=513, with B in Quadrant I. Find sin(A−B)
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Trigonometry Precalculus Pre Calculus

02/27/22

Take a good look around you, cite some real-life examples/models that would represent any of the six graphs of the different circular functions.
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Trigonometry Math

02/27/22

Find the trigonometric functions of the given angles
Using the sides of the triangles, find the trigonometric functions of the given angles indicated in the table below.____________________________________________________________________________|... more
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Trigonometry Precalculus

02/26/22

need help, quickly!!!!
In triangle ABC, what is the measure of C if a = 20, b = 15, and c = 19?A.26.1°B.42.33°C.58.87°D.63.9°E.116.1°
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Trigonometry

02/26/22

Use the values sec x = - 3/2 and tan x > 0

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Trigonometry Precalculus

02/26/22

A board 90cm long just fits inside the bottom of a box 80cm long and 60cm wide. How wide is the board?
PLEASE NEED HELP TODAY!
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Trigonometry Precalculus

02/26/22

I am having issues figuring out the correct steps to solve this and a walk through would be appreciated... Please help!
A metal plate has the form of a quarter circle with a radius of R = 100 cm. Two 3 cm holes are to be drilled in the plate r = 95 cm from the corner at 30∘ and 60∘ as shown above. To use a computer... more
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Trigonometry Precalculus

02/25/22

sin(x/2) = -3/5, find all values of x that satisfies the equation. show your algebra.
I don't understand this question:( my teacher gave us the answer, but I'm not sure how he got it. His answer was x/2 approximately ewqals 37 degrees for the reference angle. sine is negative in the... more
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Trigonometry Geometry

02/25/22

Finding angles with trig
Find each angle measure to the nearest degree. sin A = 0.9659 tan A = 0.1763 sin X = 0.4067 cos Z= 1.0000
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Trigonometry Math Algebra

02/24/22

Establish the identity of sin θ(cot θ + tan θ) = sec θ
Write the left side in terms of sine and cosine.sin θ(_______________).Can someone please help? Thank you!
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Trigonometry Precalculus

02/24/22

Please help with trig
Emy is trying to build a fence around her triangular garden. She only has one side left to build. Theother two sides are 38 feet and 19 feet long and the shared angle is 130 deg. What is the length... more
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Trigonometry Precalculus Algebra

02/24/22

Please help with this trigonometry word problem

7. Two cars need to merge into a lane at the vertex of angle C. The angle between lane AC and lane BCis 45° Car A is 100 feet from the vertex at angle C and Car B is 50 feet from the vertex at... more
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Trigonometry Precalculus Algebra

02/24/22

Could someone please help me with my trigonometry word problem ??
Julia is building a triangular dog house for her chihuahua Jorge, with three boards of wood. Board a is 8 feet, board b is 12 feet, and board c is 6 feet long. What would the angles between the... more
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Trigonometry Precalculus

02/23/22

Two cars need to merge into a lane at the vertex of angle C. The angle between lane AC and lane BC is .
Two cars need to merge into a lane at the vertex of angle C. The angle between lane AC and lane BCis . Car A is 100 feet from the vertex at angle C and Car B is 50 feet from the vertex at angle... more
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Trigonometry Precalculus

02/23/22

A sandbox in a playground has side lengths of 23 feet, 35 feet, and 40 feet. What are the measures of the angles between the sides?
A sandbox in a playground has side lengths of 23 feet, 35 feet, and 40 feet. What are the measures ofthe angles between the sides?
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Trigonometry Precalculus

02/23/22

Emmanuel is creating a garden plot with wooden plank borders. One border is 3 feet, another is 4 feet, and the last border is 2.5 feet. How much area will Emmanuel have for his garden?
Emmanuel is creating a garden plot with wooden plank borders. One border is 3 feet, another is 4 feet,and the last border is 2.5 feet. How much area will Emmanuel have for his garden?
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Trigonometry Precalculus Algebra

02/23/22

Emy is trying to build a fence around her triangular garden. She only has one side left to build.
Emy is trying to build a fence around her triangular garden. She only has one side left to build. Theother two sides are 38 feet and 19 feet long and the shared angle is 130 deg. What is the length... more
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Trigonometry Precalculus Algebra

02/23/22

Victoria and Alex are ice skating. They decide they want to race to the cone in the middle. Alex wants to know if it is a fair race.

Victoria and Alex are ice skating. They decide they want to race to the cone in the middle. Alex wants toknow if it is a fair race. Victoria is 7 meters away from the cone and the angle between her... more
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Trigonometry Math Algebra

02/23/22

If f(x)=3cos x, then solve the below questions:
If f(x)=3cos x, 1) For what numbers x, -pi ≤ x ≤ pi, is the graph of f decreasing?___ < x < ___2) What is the absolute minimum value of f?3) For what numbers, 0 ≤ x ≤ 2pi, does f(x)=0?4) For... more
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Trigonometry Math Algebra

02/23/22

find the exact value of each of the remaining five trigonometric functions of the acute angle theta if sine = square root 6/6
sin theta = square root of 6/6
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