Evaluate the following without using a calculator Cos (() )- Note: Write your answer as a fraction, do not write decimal approximations. For example, write 1/2 but not 0.5. If the answer has a T then write Pi or pi or T cos cos

Q: cos s can take values greater than or equal to 1

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Q: 17 Find the exact value of cos20 given csc0 and -< 0 < TI 8.

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Q: 5. Find the e xact Value. ) sin I Sin( 6. Wtan sint 3.

A: (1) We have to find the exact value of the following -  sin-1sin7π6Since sin-1 and sin together will…

Q: Find the exact value of: cos-1 0.

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Q: Express the given quantity in terms of sin x and cos x.

A: Given expression: cosπ+x

Q: Use a half-number identity to find an exact value for the function, given the information about x.…

A: Given query is to find the value of indicated function.

Q: Use the formula for cos(alpha-beta) to find the exact value of cos6degrees. You do not have to…

A: From the pentagon figure, obtain the value of diagonal as,

Q: Solve for the approx- two decimal places. 2 cos (0) + 2 cos(E

A: Given trigonometric equation is: 2 cos2 θ+2 cos θ-1=0 Solving we get, cos θ=-2±22-42-122⇒cos…

Q: 2. Solve the following using an appropriate cofunction identity. sin 4 = = COS X

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Q: Express cos K as a fraction in simplest terms.

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Q: Plot the following function У-cos(2n/5)-х)

A: y=cos2π5-x

Q: -When the (4tan e. tan2 0 = 1),the value of (0) from 0° to 360°.

A: We will use the formula tan2θ = 2 tanθ1-tan2θ Hence 4tanθ . tan2θ = 14 tanθ2 tanθ1-tan2θ = 18…

Q: Find an approximate value for cos46∘.

A: Taking We approximate

Q: Find the exact value of the expression. 1) cos s-1

A: Given expression

Q: Compute the following using a calculator: cos(178°). Round your answer to two decimal places.

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Q: Evaluate the following expression when x is π/6. Use exact values. cos( x + pi/2)

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Q: 2. Use your calculator and compute to 4 decimal places (a) cos(22°)

A: Part a,Given,          cos22°

Q: It is known that sin 36°=sin x and xe[0°,360°] . Write down all the possible value(s) of x

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Q: It can be shown by induction that the nth derivative of the sine function is given by the formula d"…

A: Givendndxn(sin x)=-1n-12cos xn odd(-1)n2sin xn evenTo findwhether the given formula is correctTo…

Q: QProve that: (Cos 38 Cos3e -3 Cos e Sin e)

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Q: (1) /=. | x° cos 2rdx (2) /* e cos xdx

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

Q: Compute the following using a calculator: cos(). Round your answer to two decimal place= 10л 9

A: Given,     cos10π9

Q: 4) cos 0 6. 18 12V2

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Q: .... 2. .... 10 .... 50 Show work: trig ratio (sin, cos, or tan) of L = trig ratio: =7°

A: tan 50∘=pq Here, p represents opposite and q represents adjacent. p=x and q=10 Substitute the value…

Q: For θ between 0° and 360°, find the two values of θ that satisfy the following.  cos θ = √2/2

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Q: Rewrite the following as a sum of trigonometric functions with no powers greater than 1. cos² (8x) =

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Q: 2-Find O for: y3tan? (cos x).

A: Using Chain rule we can solve the given derivative problem

Q: Find the exact value for which0 <t< 2n. cos-1(csc

A: The given expression is cos-1cscπ3. The domain of function y=cos-1(x) is -1, 1. So, the value cscπ3…

Q: 2/5 If cos a = and sin a < 0, find the exact value of cos (a +) Show the formulas you are using.

A: The trigonometric function value is given by cosα = 255 and sinα&lt;0 To evaluate : The value of…

Q: 8. Apply the formula for cos (A-B) to the identity sin 0= cos E -0) to obtain the addition formula…

A: We have the Identity: sin θ=cosπ2-θ Now, we have sin(A+B)=cos π2-(A+B) (Using above identity)…

Q: find the exact value cos151ocos1o + sin151osin1o

A: We have to use cosAcosB+sinAsinB= cos(A-B)With A=151 and B=1

Q: Find ?f if ?″(?)=2+cos(?),?(0)=1,?(?/2)=−8.f″(x)=2+cos⁡(x),f(0)=1,f(π/2)=−8. ?(?)=

A: To find- f(x)

Q: cos(-pi/12)

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Q: Given that E = sin*x- cos*x. Reducing E in terms of the first power of cosine gives:

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Q: 6) Find all values of 0 such that 360° seS720° and sin e

A: Given that    sinθ=-513   , we have to evaluate θ where 360° ≤ θ ≤ 720°  We first find in which…

Q: ind on the error that can result if cos(x) is approximated by 1 - (x2/2!) + (x*/4!) o Enter answer…

A: Here we have to find an upper bound on the error that can result if cos(x) is approximated by…

Q: Let cos(0) = 2 with 0 E 0, 5. Find csc( ::). No need to rationalize the denominator. 을). 2

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Q: Write a formula for cos 2x by writing cos 2x as cos (x + x) and using the formula for the cosine of…

A: cos2x

Q: 1) Using the formula: cos(x +y) = cos x cos y – sin x sin y, prove in steps 1+cos 2 x that: cos? x =

A: Since you have asked multiple question, as per our guidelines we are supposed to answer only one…

Q: Find all values of x between 0 and 27T that sat and give exact answers only. cos (x – ) + cos (x +…

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Q: express the given quantity in terms of sin x andcos x. cos (π + x)

A: Given expression is cosπ+x. To express the given expression in terms of sinx and cosx. Solution: We…

Q: Using the Taylor's formula calculate cos 9° n=5.

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Q: 20 Establish the identity: 1- cos e sin e sin e 1 + cos e LHS Sunt

A: Let us prove the given identity.

Q: 19. Evaluate the expression without using a calculator. 1 sin 2.cos

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Q: V3 Give the exact value of tan ( cos 2

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Q: 4) Find the value of cos(1.74) from the following table 1.7 1.74 1.78 1.82 1.86 y = sin(x) 0.9916…

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Q: 4) Evaluate the following 2 sin (x) 1+ cos (x)

A: Evaluate: ∫0π2sinx1+cosxdx