7) Find the exact value of 5TT COS COS 12 TC +sin 12 sin 12 12

Q: 15 Suppose that tan ɑ = and 90° <a < 180°. 8 Find the exact values of cos 5 and tan-

A: Given, tanα =-158, 90°&lt;α&lt;180°

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

A:

Q: Find the exact value of the expression.

A: Our Aim is to find the exact value of the expression given below:-

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A:

Q: **#1.) In triangle JKL, mZK = 90° and tanl = Determine the value of cos). %3D

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Q: 9. If csc 0 =2 and cos 6<0, find sec 0. %3D

A:

Q: 1) Find (cos+ i sin). 12 12

A: to findz=cos5π12+isin5π12

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A:

Q: 5) Find the exact value of sin 80° cos 290°- cos 80° sin 290°

A:

Q: 2. Express sin40 and cos40 in terms of powers of sin 0 and cos e only, respectively.

A:

Q: Find cos (20) if sin 0= 8. cos 0>0 17

A: Given : sin θ=817Opposite side to θ is 8hypotenuse is 17 Now use Pythagorean theorem to find the…

Q: snip

A: sin4θ=sin2θ2=1-cos2θ22=141+cos22θ-2cos2θ=141+1+cos4θ2-2cos2θ=14+1+cos4θ8-12cos2θ=14+18+18cos4θ-12cos…

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A:

Q: Verify the identity cos 4t = 1 - 8 sin2 t cos2 t.

A: To prove: cos4t=1-8 sin2t cos2t

Q: Just tangent

A:

Q: find the exact value of cos 227 cos 167 + sin 227 sin 167 by using the formula for cos (a-b).

A: Solution :       We have to find the exact value by using the formula for cos(a - b)  = ? Now, Given…

Q: 1) Find the exact value of all six trigonometric functions given cos 20 = 3 where 0 is in QII. %3D

A: Given that

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A: value=?

Q: 4. Find the exact value of cos(83°) cos(23°) + sin(83°) sin(23⁰)

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Q: the exact value   Cos θ= 3/5, 0<θ<π/2 a. Sin (2θ)= b. Cos(2θ)

A:

Q: Determine the exact value of 2 sincos cos 12 12

A: Given query is to find the exact value of the expression.

Q: 7. Give the exact answer for cos ( sin- 13

A: Consider the given expression

Q: Establish each identity.

A: Our Aim is to prove the identity given below:-1-cos 2θ +cos (4θ)-cos (6θ)=4 sin (θ) cos (2θ) sin…

Q: 8. what is sin(0)? 17' cos(0) = %3D

A: “Since you have posted multiple questions, we will solve first question for you. To get remaining…

Q: 1-cos(7A) Which is the simplified form of the expression sin(7A) O cot (플) CoS O no correct answer…

A:

Q: Find the exact value of( sin 14°) +(cos 14°) 2 -3. Graph y=3sin(2x).

A: Given :               sin 14°2 + cos 14°2 - 3    To find :  The exact value of the given expression.…

Q: snip

A: cos1°+cos2°+cos3°+---+cos358°+cos359°

Q: 8 Given cos 0 = 17 find sin 0. sin 0 = [?]

A:

Q: 8. a. Verify the given identity: sec(0)- cos(0) = sin(0))tan(0) b. Use part a to solve the equation:…

A: (a) given as sec θ- cos θ= sin θ tan θ Simplify left-hand side as sec θ- cos θ= 1cos θ-cos…

Q: find exact value 197 8. (a) cos 6 (b) сos 6 (c) cos 6 9. (a) cos 4 (b) cos 4 (c) cos 4 10. (a) sin 4…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 55. cos 37.5° sin 7.5°

A: We know that,  Sin A - Sin B = 2Sin (A-B)/2  . Cos (A+B)/2

Q: 1 minus the fraction of cos squared theta/ 1 plus sin of theta

A: Use Pythagorean identity sin^2 theta + cos^2 theta=1  This gives, cos^2 theta = 1 - sin^2 theta

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A: Solution

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A:

Q: Use DeMoivre’s Theorem to find z4 if z = 2 (cos 3π/4 + i sin 3π/4). Write your answer in standard…

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Q: Find the exact value.. 1. Cos 70°cos40°+sin70°sin40° 2. Sin 7π/12 using the fact the 7π/12= π/3 +π/4

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Q: 20. Find the exact value cos [sin-" (-) 21. cos65°cos35° + sin65°sin35°

A:

Q: 12 Determine the exact value of sin 20 given that cos=- and 13 3π 2 π<0< without determining the…

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Q: (-41) (sin(21) – cos(21) )²

A:

Q: 1. Find all radian solutions of 2 cos 0+2/3 = 6 cos 0.

A: Given trignometric equation is

Q: – 57 then - If 0 : sin(0) = cos(0) = COS %3D

A: Given : θ = -5π/6 Then, sinθ = sin(-5π/6) = sin(-5×180/6) sin(-150) = -sin(150)         [∴ sin(-θ)=…

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Q: TT CoS-+COs sin 3 = sin Prove that Sin 3 - 6. 6. 2.

A:

Q: sin 61° = cos ; cos 17° = sin 0;

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A: Given,