Find the exact value of cos15° using a suitable half angle formula. O √1+√3 2 O√1-√3 2 1° O√2+√3 2 O 2-√3 2

Q: Solve THE FOLLow wg TRig. EDUATIONS Ovee the uteaual Lo, 366 © 2 cos?o -1 ioso -4-0 (D1- Sıe = Sw°o…

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Q: Use the sine of the sum of two angles formula to find the exact value of sin(105°) O I+V3 2/2 O 2+v6…

A: We have to find angle

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A: Given query is to find value for angle

Q: Find all angles in [0°, 360°) that satisfy the equation. √3 sin 0 = O {60°, 300°} O {150°, 210°}…

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Q: Find the exact value by using a half-angle identity. sin 75° ① 专业 這次難 這次的

A: We will solve the required.

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Q: What is the exact value of sin(2859 -√2-√6 4 -√√2+√6 a b C d √2-√6 4 √2+√6 4

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Q: 2. Which of the following equations solves for the length a in AABC? A. a² = 15² + 13² - 2(15)(13)…

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Q: 5 13√3m 30m 4. Determine which of the following statements is FALSE. A. 30° = sin ¹ (¹) B. 60° = cos…

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Q: Use an identity to find the exact value of the expression. cos(135° +150°) O√√6+√√2 4 √√6-√2 4 √√6 +…

A: equation cos( a +b) =cos(a) cos(b) -sin(a) sin(b)cos()=cos() =sin()=sin() =

Q: Write z = (2+ 6i) in trigonometric form using degrees. O = 2√10 (cos 71.6° + i sin 71.6°) = 2√10…

A: The given complex number z4=2+6i4. We have to write this number in trigonometric form.

Q: If cos2A = √ m, find cos8A. ANS: 8m2 – 8m + 1

A: cos2A = √ m

Q: Find the exact value of cos 255⁰. √3-√2 2 √2-√6 4 √2+√6 4 4 2

A: Given; Cos(255).

Q: Use an addition or subtraction formula to find the exact value of VA(VB + 1) 19 sin 12 4 A В -

A: We are given that., Sin (19π/12) = - [√A(√B+1)]/4 We have to find the value of A and B A = ? B = ?

Q: Find the exact value of cos 195°.

A: we know  cos(π+x)=-cosxcos(a-b)=cos(a)cos(b)+sin(a)sin(b)

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Q: can i get a step by step

A: 0To express f(x)=x2−2x−153x+1​ in the form x+aA​+x+bB​, we need to perform partial fraction…

Q: The Law of Cosines says that... a² = 6² +c² 2

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