9,261 Answered Questions for the topic trigonometry

Trigonometry

07/17/21

Find tan ( u/2 ) if cot u = 1.878

and u is in Quadrant-III.what is tan(u/2)=?
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Trigonometry

07/17/21

Solve for the exact solutions in the interval [ 0 , 2 π ) . List your answers separated by a comma, if it has no real solutions, enter DNE.

 cos(2θ)=sin(θ) 
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Trigonometry

07/17/21

Find a possible formula for the trigonometric function whose values are in the following table.
x: 0,2,4,6,8,10,12y:9,3,-3,3,9,3,-3y=?
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Trigonometry

07/17/21

Find an equation for the population, P, in terms of the months since January, t. P ( t ) =
A population of rabbits oscillates 19 above and below average during the year, hitting the lowest value in January (t = 0). The average population starts at 950 rabbits and increases by 180 each year. more
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Trigonometry

07/16/21

The summer and winter solstices are the longest day and night of the year, respectively. (please help!)
The summer solstice happens between June 20 and June 21, while the winter solstice is between December 21 and December 23. At a latitude of 44° the summer solstice is 16.5 hours long and the winter... more
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Trigonometry Geometry Sat Math Act Math

07/16/21

Please help me with my trig homework question. Its really hard and due today.

Read and solve the word problem using the appropriate strategy: Pythagorean Theorem, Special Right Triangle Rules, or Right Triangle Trigonometry. A flagpole is propped on the east side corner of... more
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Trigonometry Math

07/16/21

Proving trigonomic expressions

I need help solving this :1. Prove the following trigonometric identities. (Neatly show all your work/proof steps.) [2x5=10 marks]a) [(sin 2x) / (1+ cos 2x)] . [cos x / (1+ cos x)] = tan (x/2) b)... more
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Trigonometry Math Geometry Trig

07/16/21

please answer this trig question asap my homework is due today
Question: (please answer this question asap I really need help by today since my homework is due today and if possible can you provide the formula you used?) Two walls of a canyon form the walls... more
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Trigonometry

07/16/21

PLEASE HELP ME TODAY ON MY HOMEWORK ITS DUE SOON.
Question:Two walls of a canyon form the walls of a steady flowing river. From a point on the shorter wall, the angle of elevation to the top of the opposing wall is 20° and the angle of depression... more
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Trigonometry Math Geometry Sat Math

07/16/21

Please help me on this Trigonometry Right Triangle question.

Question:Two walls of a canyon form the walls of a steady flowing river. From a point on the shorter wall, the angle of elevation to the top of the opposing wall is 20° and the angle of depression... more
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07/15/21

Show that,(cos4x-cos2x)/2sin3x=-sinx for all x such that sin(3x) is not equal to zero
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Trigonometry Math Functions

07/14/21

theme park math question
A popular ride at a theme park consists of a large wheel that starts in a horizontal position andas the ride picks up its rotational speed the wheel tilts up to a moderate acute angle. A... more
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Trigonometry Math Precalculus

07/14/21

The Earth is one astronomical unit from the sun i.e.1AU= 93 million miles.The angular speed is 0.9863 degrees a day. How many revolutions will the Earth make in one hour?
The linear speed in miles per hour for this question is 66711.7, but I can not figure out how to find how much of a revolution the earth will make in an hour.
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Trigonometry Math Precalculus

07/14/21

the tip of a lawnmower blade spinning at 2300 rev/min cuts a 20-inch wide path. What is the angular speed in degrees per hour?
I can not figure out how to convert it from miles per hour to degrees per hour, which I am trying to learn for my upcoming lessons. The miles per hour is 136.84967998.
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Trigonometry Math Calculus Algebra

07/14/21

trigonometry: terminal arm diagram
Link to document for better explanation:https://docs.google.com/document/d/1Tro4wgBI5zo3K4AotB1uaUoQTJVB7pLwc--7rhDne8Y/edit?usp=sharingI will try to summarise the question here: For this part of... more
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Trigonometry

07/12/21

Solve the equation. (Find all solutions of the equation in the interval [0, 2𝜋). Enter your answers as a comma-separated list.) 4 tan(2x) − 4 cot(x) = 0
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Trigonometry

07/11/21

Find all solutions to cos ( 7 θ ) − cos ( θ ) = sin ( 4 θ ) on 0 ≤ θ < 2 π 3

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Trigonometry

07/11/21

Write the product as a sum or difference: 12 cos ( 24 q ) cos ( 18 q )=
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Trigonometry

07/11/21

f ( x ) = − 4.5 sin ( x ) − 4.6 cos ( x ) . What is the maximum and minimum value of this function?
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Trigonometry

07/11/21

Write the product as a sum or difference: 10 sin ( 40 u ) cos ( 10 u )
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Trigonometry

07/11/21

Solve sin ( 2 x ) cos ( 4 x ) − cos ( 2 x ) sin ( 4 x ) = − 0.75 for the smallest positive solution.
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Trigonometry

07/11/21

Rewrite sin ( x − π 4 ) in terms of sin ( x ) and cos ( x )
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07/10/21

Find all the values of x, in between the range [0,2π] for the following equation. 2sin(3x)+3cos(3x)=0
Please solve this math in step by step.I got totally stuck.Can't find the answer..My xm is on 15 th.
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Trigonometry Precalculus Sat Math

07/10/21

Find the product z1/z2

z1 = 5(cos 170°+i sin170°) and z2=7(cos 140°+i sin140°)
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Trigonometry

07/09/21

What is the purpose of the division of two lengths of a triangle in Trigonometry?
 I understand the definitions of the six trigonometric functions but I don't understand why do we use the operation division for two lengths of a triangle. My teacher said that "it's just a rule"... more
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