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

Q: Which of the following is true about sine and cosine functions?

A: It is known that the range of sine and cosine functions is [-1,1]. Thus, first statement is false.

Q: Use a calculator to approximate the value of the expression cos−1 0.26, if possible. Round your…

A: Given: cos-1 0.26,

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

A:

Q: Use your calculator to find the sine of 23°rounded to 4 decimal places

A: Rounded to 4 decimal places means nearest number to 4 decimal places. Value of Sinx is always varies…

Q: Find cos(θ), if sec(θ)=−2.  Round your answer to four decimal places.

A:

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

A:

Q: Is the sine function even, odd, or neither?

A: We know that, a function fx is said to be even if and only if f-x=fx. Also a function fx is said to…

Q: Use a middlesum with n = 4 to estimate / cos(vr + 4) dx. Make sure that your calculator is in…

A: Given fx= ∫-412cosx+4dx  and n=4

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: Without graphing, determine the amplitude and period of y = 4 cos

A: A function is usually represented as f(x), where x is the input to the function and f(x) represents…

Q: What is the exact value of cos-(165°)?

A:

Q: Find a cofunction with the same value as the given expression. tan -

A:

Q: cos−1(0.33

A: To evaluate using calculator.

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: Find a cofunction with the same value as tan 25°.

A:

Q: As theta increases from 0 0to 90 0, the value of cos theta tends toward what number?

A: we know that in 0∘ to 90∘, cosine function is decreasing function and it's value is tends towards…

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

A: To evaluate: cos-1(23) Solution: cos-1(23) On calculating we get:…

Q: Find the exact value

A: Given, sincos-1-23

Q: How is radian measured?

A: We have to explain how radian is measured

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: when should you use radians and degrees

A:

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

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

Q: What is the amplitude of y =A cos Bx?

A: Consider the given expression as y=AcosBx Here, y is displacement from the mean position.

Q: Write the first trigonometric function in terms of the second for θ in the given quadrant. tan(θ),…

A: The first trigonometric function in terms of the second for θ:   Given trigonometric functions,…

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

A:

Q: 5) cos 27

A: Answer is  1 and explanation is given below

Q: Evaluate without using a calculator.       sin ( cos  -1 1/2)

A: sincos-112

Q: Find cos 67° correct to four decimal places by using a calculator.

A: cos67°

Q: Find 0 in radians. T radians ?

A: Here, from the given figure the point which has the angle θ is: 12,32=(x,y)

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: 1 sed(cos")

A: ## we know that  Sec(cos^-1(x)) = 1/x

Q: The voltage E in an electrical circuit is given by E = 1.3 cos 100 πt, where t is time measured in…

A: The expression of voltage (E) as a function of time is given below.E = 1.3∙cos(100∙π∙t)

Q: Find the values of other five trigonometric functions if cosx=(-1/2) if x lies in third quadrant

A:

Q: Given the graph of a sine function. What is its amplitude?

A: here we have to find the amplitude of a sine function graph.

Q: Evaluate without using a calculator. tan(cos−1 9/15)

A:

Q: How many radians are there between the hands of a clock at eight o'çlock?

A: Query- How many radians are there between the hands of a clock at eight o'clock. Answer-  As There…

Q: Use a sketch to find the exact value of the expression.

A: Given expression: tancos-1-13 Consider the value of cos-1-13=y. Therefore, the given expression…

Q: Use a calculator to approximate cos 45 to four decimal places.

A: Consider the given trigonometric term cos45

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

A:

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