When figuring out this question, what would be the radians value, with 4pi/3?

Q: Find the exact value of the expression, tan [arcos( - )

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Q: Evaluate the expression under the given conditions. cos(θ − ϕ);  cos(θ) = 5/13, θ in Quadrant IV,…

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Q: Find the exact value of the following, without using a calculator. () sin sin + tan '(-2)

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Q: use the half angle formula to find the exact value, not a decimal approximation. of cos(pi/8)

A: Half angle formula of cos, cos2A=2cos2A-1 2cos2A=cos2A+1cosA=cos2A+12

Q: Use your calculator to evaluate cos '(0.47) to at least 3 decimal places. Give the answer in…

A: Here I am attaching image so that you understand each and every step.

Q: Use a calculator to approximate sin pi/8 . Round the answer to two decimal places.

A: We have to find the value of sin pi/8.

Q: Evaluate the expression below without using a calculator.   cos (arcsin 3/5− arctan 2)

A:

Q: 2. Use a calculator to find an approximate radian angle measure rounded to the nearest 1,000th. a)…

A: Since you have posted multiple sub parts, as per our policy we will answer first three sub parts.…

Q: As theta increases from 0 degree to 90 degree , the value of cos theta tends toward which of the…

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Q: Use a calculator to approximate each value to four decimal places.             cos 10

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Q: Use half-angle formula to find exact value of cos 15°

A: Given,          cos15°We know that,         cosθ2=1+cosθ2

Q: Cannot solve

A: cos-1(cos(π/8)) We know, cos-1(cos(x)) = x

Q: What is the exact value of cos⁡15∘?

A: According to the given information, it is required to find the exact value of cos(15).

Q: Use a calculator to find the value of the trigonometric function cos(π/10)to four decimal places.

A: Given, cos(π/10)

Q: cos 180 II

A:

Q: The radian measure of 0 shown in the figure is

A: Length of the arc is the distance between two points on the curve and it depends on radius of the…

Q: Find the exact value in radians. sec (-2) 3. 27t 57

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Q: Why might it be useful to convert radians to degrees?

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Q: What is the value of cos^-1 (15/16) rounded to three decimals?

A: Here I am attaching image so that you understand each and every step.

Q: Use a calculator to find the approximate value of each expression rounded to two decimal places. cos…

A: Explanation: Given that,

Q: The period of the function y = cos 30 in radians is ㅇ쯤 을

A: The given function is;  y=Cos(3 theta).

Q: Compare the values for the following, which is greater: sin 100° or sin 250°? Use the sin wave to…

A: We will use the fact that sine is periodic function. And it is increasing function in the interval…

Q: Use half-angle formula to find exact value of cos 15°.

A:

Q: How many radians is 30°?

A: Degrees to Radians: - Degrees to radians is a type of conversion used in geometry to convert angle…

Q: Use your calculator to evaluate cos (0.85) to at least 3 decimal places. Give the answer in radians.

A: To use calculator to evaluate cos-10.85 to atleast 3 decimal places.

Q: Use your calculator to find, correct to 4 decimal places: a cos 74° 6 sin 132° c tan97°.

A: Given trigonometric ratios are cos 74° sin 132° tan 97°

Q: Use a calculator to approximate each expression in radians rounded to two decimal places.

A: Use a calculator to approximate each expression in radians rounded to two decimal places.…

Q: Use a calculator to find the approximate value of: (a) cos 48° (b) csc 21° (c)tan π /12 Express your…

A: Given-  a cos 48°b csc 21°c tan π12 To Find-  The value of the above trigonometric expression using…

Q: Use a calculator to approximate cos-1 ( - 0.75) in radians, rounded to two decimal places

A: Given:  cos-1 ( - 0.75)

Q: The difference formula for the sine function is sin(A-B)=....................

A: Given: sinA-B=......... To Find: The difference formula for the given function

Q: 3. arccos

A: We have given expression arccos-32

Q: Evaluate the given quantity without using a calculator or tables. cos [sin-¹(3)]

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Q: On a calculator, the sin , cos , and tan keys allow us to find the _______ of atrigonometric…

A: Funtion of  sin, cos and tan keys on a calculator

Q: Without using a calculator b) cos-1 (tan ()

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Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. cos (2)

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Q: Find the exact value, in radians, of the expression arc cos ().

A: We will solve the required.

Q: What angle between 0 and 2pi radians has its cosine equal to 1/2?

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Q: What is the formula for tan 2A?

A: Given:tan 2A

Q: Use a calculator to find the value sin π/4 to four decimal places:

A: we have to find the value of sin π4 by using a calculator

Q: Evaluate without a calculator:

A: The unidentified measure of an angle of a right triangle can be evaluated with the help of inverse…

Q: The radian measure of θ shown in the figure is θ =_________ .

A: Here in a given circle, we have:-arc=sradius=rand angle=θ, represents the cental angle in radians.

Q: Use an appropriate Half-Angle Formula to find the exact value of the expression. COS

A: We can answer the question as below using half angle formula.

Q: Evaluate the following. Provide exact answers in radians. • arcsin ()

A: Since you have asked multiple questions in single request  so we  will be answering only first…

Q: Find the exact value of the given expression, without using a calculator. 12 Cos tan

A:

Q: 2. Use a calculator to find an approximate radian angle measure rounded to the nearest 1,000th. a)…

A: d).  Given, cos-1-0.35 By using calculator, we get cos-1-0.35=1.928367≈1.928

Q: Use your calculator to find sec-1 8. in radians. Round your answer to four decimal places.

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Q: What is the relationship between sin(90∘) and sin(−90∘)?

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Q: Use your calculator to evaluate cos^-1(0.26) to at least 3 decimal places. Give the answer in…

A: To find the value of