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...
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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) = ?

05/18/21

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

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

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)

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 .

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.

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

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)?

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!

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...
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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?

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?

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°)

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...
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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...
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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.

#### Equilateral triangle UNIT circle

An equilateral triangle is inscribed in the unit circle. find the exact perimeter of the equilateral triangle.

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)...
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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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