4(cos135 Cos 1 5)

Q: Simplify cos[arccsc((2√3)/3)]. 1/2 no solution √3/2

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Q: 5m Find the exact value of COS 12 o V6-/2 O V6-V2 O -V6+/2 O -/6+/2 4.

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Q: evaluate exactly cos-1(-3/2)

A: -3/2 lies outside the domain of the function. Hence we will have no solution

Q: Show that T (1-i) cos- +isin- 40 40 (81-8√3) 6 10 = -√2

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Q: Use the addition formula to prove cos 30 = 4cos3 0 - 3 cos0

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Q: How does "COSA = Cos360-143" turn into "COSA=Cos143"?  Is it because COS360 is positive that it just…

A: Let's solve trigonometric value.

Q: True or false: cos(2pie/3 + pie/6) = cos2pie/3 + cospie/6

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Q: ® I co coso de COs o

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Q: Find the quotient 21 22 21 - O 21 (cos 200° + i sin 200°) and 22 21 - 22 O O = 3 (cos 80° + i sin…

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Q: 7) Use sun and difference formula to verify the identity cos(A+B) cos(A-B) = cos2A + cos2B-1 A-B) =…

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Q: 2. Express cos(60) in terms of powers of cos only.

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Q: 2730n ? 365 Which number is equal to coS 1 e-i2n335n/365 1 1 ei2n335n/365 2 (a) pi2n30n/365 (b)…

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Q: 18( cos54 + isin54°) 3(cos102" + isin102" )

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Q: Tan (690) × cos(-510)

A: To find: The value of . Formula used: Trigonometric reduction formula:

Q: 6T cos 8 de : so O o o O

A: Here we will solve the  given integral,

Q: Show the solution for  (1 + cos A) (1 - cos A)

A: Explanation of the solution is given below..

Q: 1+cos4x 1. 1-cos4x -csc2xdx

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Q: ) de 1 cos330 cos830. sin³30

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Q: sin –9xdx

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Q: 3 2 IT I Vo cos 22 Ө cos de

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Q: Evaluate 3 L, cos¹ (2+1) dr. -1

A: l have given the answer in the next step. Hope you understand that

Q: Evaluate 4 •2TT -2 cos o [³6 0 0 0 psin odpdedo.

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Q: JI- co13X him

A: