48 Answered Questions for the topic Unit Circle

05/01/22

I’m attempting to sketch the graph of the following question, how would I answer the interval chart steps below?

Info:the interval is for the following function, y = cos(2x) —————- 3-2sin2(x) I’m sketching the graph of it dy/dx can only be positive or negative slope can only be up or... more
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11/16/21

What is P(π+θ) if (-8,15) lies on the terminal side of θ?
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06/07/21

Suppose sin(theta)= m where 0° Is Less than or equal to theta and less than or equal to 90°. Write an expression for each of the following in terms of “m”
 a) sin(theta) = ?                           b) cos(theta) = ?    
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05/18/21

Let (-2,-3) be a point on the terminal side of θ. Find the exact values of cosθ, cscθ, and tanθ.
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Unit Circle Trigonometry Maths

05/17/21

Cos theta = -1/2 and sin theta = -1/2
Calculate all values of theta on unit circle: when cos theta = -1/2 ; and also when sin theta = -1/2
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05/12/21

Let sin(x)= -4/5 in quadrant 4 and let tan(y)= -5/12 in quadrant 2
Find sin (x-y)Find cos (x+y)Find cos (x/2)Find tan (2x)Find cos (2y)
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Unit Circle Trigonometry

05/01/21

Please help with answer
The terminal side of angle θ in standard position lies on the line 4y +3x = 0 inQuadrant II. Find all six trigonometric functions of θ .
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Unit Circle Trigonometry

05/01/21

PLEASE HELP ANSWER
Find all angles θ , where - 2π < θ < 0, such that tan θ = sqrt3/3 . Find all angles θ , where 360° < θ < 720°, such that sec θ = −2 and csc θ > 0.
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12/07/20

What is P(θ-π) if (-8,15) lies on the terminal side of θ?
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12/07/20

What is the max. temperature (Celsius) that occurs on the second day?
f(t) = 18-4cos(π/12(t+1))t stands for the hour
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10/17/20

Trigonometry problem (Unit Circle). Please help!
Given that -1/3 is the x - coordinate of the trigonometric point of an angle, what is P( 𝝅 - 𝜽)?
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Unit Circle Math Calculus Precalculus

04/20/20

On a unit circle, what is sin θ for coordinates (√2/2, -√2/2)?
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11/22/19

Plot the Polar Coordinates
Plot the Points with polar coordinates (-6,-π/6) and (2, 3π/2). Plot on the Unit Circle.Small320×320Please help! I'm just not understanding this. Please explain! Thank you!
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04/11/19

Trigonometric Equations
Using inverse trigonometric functions, find a solution to the equation  cos(x)=.7 in the interval 0 to 4pi. Then, use a graph to find all other solutions to this equation in this interval. Enter... more
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10/07/18

how would I solve for csc theta = 2.3 on my calculator and get an answer in degrees?
cscΦ = 2.3   How would I find theta in degrees using my graphing calculator. Would I just use sin on both sides to cancel out theta or would I have to do something else?
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Unit Circle

09/21/18

The cos of 3pi/4
Typed like on a computer 
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Unit Circle

09/08/18

tan(θ)=−1 and sec(θ)<0. Which of the following can be the angle θ?
 this question for my pre-cal class and Im having a hard time understanding it and don't know where to start from can you help me please?
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Unit Circle Trigonometry

09/01/18

tan(-20)= -tan(20). Why?
In two or more complete sentences, use your knowledge of the unit circle to describe why the following trigonometric equation is true.tan(-20°) = -tan(20°)
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Unit Circle

07/16/18

Evaulate:- sec 690
Unit Circle I have doubt evaulate:- - sec690°  
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07/26/17

Find the area of the sector to the nearest square root
A sprinkler is designed to rotate 360 degrees clockwise, and then 360 degrees counterclockwise to water a circular region with a radius of 12 feet. The sprinkler is located in the middle of the... more
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04/28/17

Need help solving this math problem with trigonometric functions :)
Suppose the terminal point determine by t lies in the second quadrant and is (-24/25, y).   (a) Find y.   (b) Find the value of the 6 trigonometric functions at 837π + t   I believe the... more
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03/27/17

UNIT circle question
An equilateral triangle is inscribed in the unit circle. find the exact perimeter of the equilateral triangle.
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03/27/17

Equilateral triangle UNIT circle
An equilateral triangle is inscribed in the unit circle. find the exact perimeter of the equilateral triangle.
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03/27/17

Trig question help
A snowboarder does tricks and names them by their degrees. convert their spins to radians.  A) "I just performed a Cab540" b) "did you see that Niki Huwlyer landed a quintuple cork 1980?" c)... more
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03/27/17

Trig problem
Evaluate sin(sin-1(sin60)) [60 degrees]   and    evaluate cos-1(cos(cos-10.5)) if the angle is in quadrant 1. 
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