9. Find the exact value of each expression. (a) sin 8° cos 22° + cos 8° sin 22° (b) sin 75° (c) sin 12

Q: 4. Apply half-angle formula to find a. cos 15° b. sin 15° C. COS

A: Given: cos15∘, sin15∘, cos5π8 We know that cos2x=cos2x-sin2x…

Q: 3 3. If sin t =- 5 <t < 2n ,find the exact values of sin 2f, cos 2t , and tan 2t. 2

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Q: 18. Find the exact value of the following expressions. Simplify. 7 cos arctan V3 a) b) tan cos 4

A: Here we calculate the value

Q: 4 Suppose that sina and 90° < a < 180°. 5 a Find the exact values of sin and tan 2 गंत 2

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Q: 2.) Find the exact value of: a) cos COS b) sin 75°

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Q: What is the correct set up to solve for x? 19° Your answer: o cos(19) = 25 !3! 25 cos(19) = o…

A: NOTE: Refresh your page if you can't see any equations. . here we have AB=25 A=19 BC=x

Q: (c) Under the assumption that x = ´cos 0 2 sin 0, use an appropriate right triangle to cos³ 0…

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Q: 8. Find the exact value of the expression. tan cos 2

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Q: 5. Which of the following quantities is undefined? (a) sin-'(-}) (b) cos-(2) (c) csc-() (d) csc-'(2)

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

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Q: 4. Find the exact value of each of the following. a) cos (2 sin-12) 5. b) a tan (2 tan-12)

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Q: Find sin), cos), and tan from the given information. cos(x) = - 180° < x< 270° 25 sin) - cos tan

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Q: Find the exact value of the expression. 5x sin COS COs sin 12 12 12 12 兀 sin 12 COS 12 sin Cos 12 12

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Q: (b) If (20) = 3/5 and 0<o<T/4, find the values of i. sin (20) Cos ii, cos () iii. sin (0)

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Q: Determine the following: a) sin^-1(√2/2) b) cos^-1(-√2/2) c) cos^-1(tan(π/4)) d)…

A: Solution of the problem as follows

Q: Evaluate the expression under the given conditions. 17 8. O in Quadrant I, cos o = - 2/5 sin(0 + ø);…

A:

Q: 10. Use trig identities to transform the left side of the equation into the right side. cos(0)…

A: To Prove: sin θcos θ+cos θsin θ=csc(θ).sec(θ)

Q: / Find the value of the following: 1) cos (tan- 1) 2) sin (sin-) -1 3) tan (cos n) cos (sin-1) 4)

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Q: 13 Suppose that sec and 270° <0 < 360°. 0 Ө Find the exact values of sin and tan 2 2 गंत

A: Solution of given question is written in below steps.

Q: 7. Evaluate the expression: a. sin -1 (1/2) = b. arc cos (-

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

Q: 8 If tan 0= T< 0 < 7' 2 find the exact value of each of the following. (a) sin (20)

A: we have given a trigonometrical ratio. We have to find sin2thita

Q: Find the exact value of the expression. 7 sin sin + cos 25 17

A: Use sin(A+B)  , expand and solve

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

A: As per rule of bartleby we can solve only one question at a time and we can solve only three subpart…

Q: Find the exact value of the expression. 3 + cos sin sin 8 1 17

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Q: 2. Find the exact value of the following a. cos 12 b. sin (70°) cos (40°) – cos (70°) sin (40°)

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Q: Find the exact value of the expression. sin 25° cos 35° + cos 25° sin 35° O 1 O 5 12

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Q: ind the exact value of the expression. sec(sin−1(5/13))

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Q: please answer all the parts

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Q: 5. Use a half-angle identity to find the exact value of sin cos x = 12

A: To find the value of sin

Q: 10. Find the exact value of the composition. cos sin

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Q: 1. Find the exact value of each expression: (d) tan-1 tan 3 cos 15л COS 7 (е) (f) cot ( sin V3 +…

A:

Q: 8 tan 0 = 3' find the exact value of each of the following. a) sin (20) (b) cos (20) (c) sin , (d)…

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Q: 11. Find the exact value of sin(20), cos(20), and tan(20) under the given conditions. Show all work…

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Q: 8. IT If sin 0 = - 5,0<0<5, find the exact value of each of the following. (a) sin (20) (b) cos (20)…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Find the exact value of sin 75°. 4 4 4 12 2

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Q: 12 and sin 0>0, find cos 0. 35 3. Given tan O

A: given that tanθ=-1235 since sinθ&gt;0 therefore, θ lies in the first or second quadrant. But given…

Q: 11. Complete the sentence below. sin 20+ + cos 0 = %3D

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Q: Find sin sin(), cos(2), and tan (2) from the given information. 24 cos(x) = 180° < X < 270° 25 sin()…

A: I have stated the used formulas in the solution.

Q: 8. 15 Use the figure above to find the exact value of sin 20, cos 20, tan 20. sin 20= cos 20= tan…

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Q: 4 1. Find the value of (icos-+ sin TT sin-) 8.

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Q: 31-35. Verify that sin 90° is indeed equal to 1 by using the expression sin (A + B).

A: We have to verify that sin 90° is indeed equal to 1 by using the expression sin(A+B)

Q: 10. 3 sin 30 cos Od0

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Q: 7 If Sin A = . Cos B = where A, BE]0,[ then 25 find the value of Sin (A+B), Cos (A-B)

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Q: Find the exact value of the expression. an(1)) sin cos + 2

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Q: Find the exact value

A: (a) We know that, coscos-1 x=x Therefore we get, coscos-1-0.5=-0.5

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

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Q: *Find the exact value of the given functions: cos (sin-¹ + cos-¹5/3) 13 9.

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Q: 13 6 Give exact answers. If csc(x) = = sin(-) = ³(²-) tan()=[ COS (in Quadrant 2), find

A: NOTE: Refresh your page if you can't see any equations. . as we know,

Q: 17. Give the EXACT values for the quantities. (a) sin = (b) cos = (c) cos- = (d) cos

A: Topic = Trigonometry

Q: Find the exact value of the expression whenever it is defined. a. cos( 2 sin-1(3/5)) b.  tan(2…

A: given: a cos2sin-135,b tan2tan-152 we know that cos2θ=1-2sin2θ…