#9 in section 7.2 Precalculus mathmatics for calculus seventh edition. addition/subtraction formulas for sin, cos, and tan. I understand how to solve when the math is simple ex: cos (105) = (root 6 - root 2)/4. but Im not sure where the numbers came from in the question sin (11(radian)/12). I dont understand how to work through the problem or how to rewrite the angle in a way to plug into an addition or subtraction formula when its in terms of radians instead of exact angles.

Q: 9. Solve the following trigonometric equation. а. 2 cos x — 1%3D0 с. 2 cos x tan x = 2 cos x b. (1+…

A:

Q: 9 Find 0 if 0 < 0 < 2n and: e cos 0 = - f sin? 0 = 1 9 cos? 0 : 1 %3D /2

A:

Q: 7. (a) 8. (a) 2 л 10 36° (b) 72° (c) 144° It is known that sin >0 and tan 0 (b) cos 0 or cos <0 are…

A:

Q: Find all solutions to 2 cos(0) = 1 on the interval 0 <0 < 27 %3D

A: Given : 2cosθ = 1

Q: on the solution for the derivative n=2 it has (-1)d/dx[sin4x] = (-1)4cos4x = 4cos(4x+2pi/2). I am…

A:

Q: If sin 0 + sin²O = 1, then cos40 + cos³0 + 2cosg = %3D %3D A) O B) -1 C) 1

A: To find: The value of cos4θ+cos8θ+2cos6θ. Given: The equation is sin θ+sin2θ=1. Formula used: The…

Q: 9T Find the exact value of sin( ) 4 - /3. O 1 1/2

A: We can make it easier for you.

Q: 2.4 Can you show me the steps to solve the problem? Directions: Differentiate. 11) sinθ / (1 + cosθ)

A: To determine the first order derivative of the function.

Q: 11. 0/1 points Previous Answers McKTrig8 1.4.023. 2 Recall that sin- 0 means (sin 0)2. 2 find sin 0…

A: The given expression is;

Q: cos 0=- r+H Н cos 0 r= 1-cos 0

A:

Q: 1 Considering only the values of a for which is defined, which of the following expressions is…

A:

Q: I am struggling to solve this problem.   Thanks much.

A: Known facts:

Q: 7. The value of 2 cos (sin-1 (-0.6)) is: C. 0.8 D. -0.8 A. 1.6 B. -1.6

A: To find: The value of 2cossin-1-0.6. Formula used: cos-x=cos x Inverse trigonometry relation;…

Q: Question 14 What is the general solution of (sin 0- 2rcos 0) dr + rcose (2rsine +1) de -07 sin 6…

A:

Q: I'm having trouble trying to solve the problem csc x - csc x cos2 x = sin x. I'm having trouble…

A: you will need to use only these identities to solve the question;

Q: Question 6 Show that the equation f(#) = cos(a)+10z-95 0 has exactly one solutloni. v INote that you…

A:

Q: 3. Consider the following trigonometric substitution problem: Vr2 + dr 36 Making the substitution: x…

A:

Q: Kreyszig Chapter 1, Section 1.5, Additional Question 01 Find the particular solution for the given…

A:

Q: 1 let r0) -(sin 34, cos 3, Jī r), a) Find 7(1) and N(1) b) Use your results from part a) to find…

A:

Q: Show that (1 – e") = 2 sin ( - a eil(a-r)/2]

A: To show 1-ejα=2 sinα2ejα-π2 , simplify left hand side expression and show equivalent to right hand…

Q: Question 1 * SE sin(u) du = O a) 2x cos (x²) O b) –2x cos (x²) c) –2x sin (x2) O d) 2x sin (x²) e)…

A: use fundamenetal theorem of calculus  for finding the derivative.

Q: 1. Which is not the solution to 〖tan〗^2 2θ-tan2θ? * a. π/4 b. π/3 c. π/2 d.3π/4 2.what…

A: To find the solution.

Q: = 29. A solution to the trigonometric equation cos x C. x = 2 D. x = x= 1/72. -is A. x = 3 B. x = =…

A: Value of cos(2π/3) is -1/2

Q: 9 Find 0 if 0<0 < 2n and: d sin 0 = 1 h cos? 0 = i tan 0: i tan? 0 = 3

A: To find θ if 0 ≤ θ ≤ 2π  sin θ = 1cos2 θ = 12tan θ = -13tan2 θ = 3

Q: Find exactly all solutions to the given equation. cos 20 + cos 0 = 0, 0° < 0 < 360° Enter your…

A:

Q: 1. Suppose we know sin a = and 0 < a < 5, and suppose we also know cos ß = 2/5 and 5 -* < B < 0. Use…

A:

Q: cos e de sin² 0 + 4 sin 0-5

A: To evaluate the given integral.∫cos θ dθsin2 θ+4 sin θ-5

Q: d. sec x = 0.2 e. 2cos (Ɵ/2) = ‐ √2 f. 2sin (2Ɵ) +1 = 0

A: Concept: The trigonometric ratio are ratios, sine, cosine, tangent, cosecant, secant and cotangent.…

Q: Find all the exact solutions of the equation sin 2a = - 3 cos a. 2 tan 0 cos 20 = cos? O – sin?0 = 2…

A:

Q: Question 7 In f (25-9x2) 2 we use trigonometric substitution by letting 3 5x 3 sin 0 O 3x = 5 sec 0…

A:

Q: d. Use the compound angle formulae to expand x1 and x2 into the form A sin 100nt + B cos 100nt,…

A: Displacement caused by the vibration of beam is modelled by the equations x1=3.75sin100πt+2π9…

Q: Kreyszig Chapter 1, Section 1.5, Additional Question 01 Find the particular solution for the given…

A: Given equation is: y'+25*ycot5x=30cos5xyπ10=4 Simplifying the differential equation: The integrating…

Q: #11 Find tan (A - B). 3 cos A = 1 sinB = < A< T 2 B<T 2

A:

Q: Question 14 * Given that: E =2sin(x)cos(4x). Then E = a) E=sin3x-sin 5x b) E=÷(sin5x-sin3x) 2 c)…

A:

Q: Glven 0 <0 < 27, solve-2 sin 0+ cos 0-1=0.

A:

Q: Question 9 The integral S x dx x²+√√x²-1-1 A /co B / Ⓒece s cose de 1 - sine sec²0 de 1+ tane secᎾ…

A:

Q: sin 3t 4. f(t) t

A:

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: Hello, can you please explain to me how the answer is 2tanx. The original problem is in the first…

A: Given,

Q: 3. Solve the following trigonometric equation for 0: 2 cos 0 – 5 cos 0 + 2 = 0 -

A: Given equation is 2cos2θ-5cosθ+2=0Let cosθ=xSo, 2x2-5x+2=0We know that for a quadratic equation…

Q: A Moving to another question will save this response. Question 9 The suitable substitution to…

A: Explanation of the answer is as follows

Q: (2y -+ cos 3x)y' +– 4x³ + 3y sin 3x = 0 + cos 3x)y' + - 4x3 + 3y sin 3x = 0 %3D

A:

Q: Question 12 a If f(X) = sin² (3 - x), then f' (0) = A) -2 cos 3 B) -2 sin 3 cos 3 6 cos 3 D 2 sin 3…

A:

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

A:

Q: 15 2. Find the other 5 functions of the given angle if its sin 3. If cos e = and < e < 2 n n<0< 2n…

A:

Q: en/6 .Evaluate: (i) cos" 30 sin 60 de Jo 2a (i) x(1- x*y/ dx (2ax-x) dx. (iii)

A: Note: Our guidelines we are supposed to answer only one question. Kindly repost rest question as the…

Q: 213 2 300 60° 4 Based on the picture above, which is not true? 1 A tan (30°) V3 ® tan (60°) = v3 1…

A:

Q: Question 2 exp (exp (- in)) -0.3679 coS T 1 sin T - – exp(cos Tt - i sin Tt) - 0.3679

A: We have to Use Euler's Identity to find result.

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.