Explain why the equation cos? x = has a solution in all four quadrants. List all of those solutions.

Q: explain with pictures, words or equations what the equation tan (pi/4)= 1 means and why it is true

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Q: If csc(x)=23/2 (in Quadrant-I), find, cos(2x)=

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Q: sin(?) cos(3?) + cos(?) sin(3?) = 0

A: we have to simply   sin(?) cos(3?)   +  cos(?)  sin(3?) = 0

Q: 8. (3 cos x + 2)(cos x – 1) = 0

A: Cos(-x) = cos x  Cosx=1 then x =2nπ where n €Z

Q: on is highlighted in purp

A: Here we have to solve the given quadratic equation.  We have,

Q: Find the angle 0, in radians that make the equation true; tan0=0

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Q: The equation 0 -can be converted to a 4 rectangular equation by taking the both sides and then…

A: Given: θ=5π4

Q: Evaluate the expression without using a calculator. (cos( + sin

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Q: Use an Addition or Subtraction Formula to simplify the equation. cos(?) cos(2?) + sin(?) sin(2?) =…

A: cos(x)cos(2x)+sin(x)sin(2x)=22[Formula cos(A)cos(B)+sin(A)sin(B)=cos(A-B)…

Q: If θ is an acute angle,solve the equation cos θ =√3/2.

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Q: Find the angie o, that makes the equation. True; Tan o īO

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Q: what is the exact value of sec(pi/6).

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Q: Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2?). ....Enter your…

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Q: Find the exact value in radians. sec (-2) 3. 27t 57

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Q: If θ is an acute angle, solve the equation sin θ= 1/2.

A: Given: If θ is an acute angle, we have to solve the equation sin θ= 1/2.

Q: Simplify the trigonometric expression: sin B+ cos BcotB 4.

A: Given that: sinB+cosB.cotB

Q: If cosθ=0.104, find θ, writing your answer to the nearest degree.

A: Use inverse trigonometry ratio

Q: Use the half-angle formulas to simplify the expression. 1- cos(x – 3) 2

A: We know that cos(2t)=cos2t-sin2t=2cos2t-1=1-2sin2t⇒2sin2t=1-cos(2t)⇒sin2t=1-cos2t2

Q: sin 8-1 Cos e

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Q: Find two solutions of each equation, give your answer in radians ( 0 Cos theta = sqrt 2/2

A: Given Equation is cos∅=√(2)/2 . First to get rid of cos, we take inverse cos on both sides .

Q: Find the exact value: (no calculators!) (-) V3 tan 3

A: Use the concept of trigonometric and inverse trigonometric functions.

Q: Evaluate the expression without using a calculator. + cos 3 sin 3

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Q: Find all solutions in radians: 15 − 9 cos (6t − 5) = 14

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Q: |sin(Inx)dx

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Q: Write an expression that gives all solutions to the equation. cos x – sin x = = V2

A: cosx-sinx=2

Q: If csc(0) > 0, in which quadrants could 0 lie? Separate multiple answers with a comma.

A: We have to use trigonometric angle properties to solve the given problem

Q: Explain in words, how to solve the quadratic trigonometric 4 sin x- 6sinx+2=0. eg uation fxflain…

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Q: The sum of the sines of two angles A and B is 3/2 while the sum of the cosines of the angles is √3…

A: Given  Sin(A)+Sin(B)=3/2 Cos(A)+Cos(B)=(3^(1/2))/2

Q: Write the equation of the Law of Cosines?

A: We have to write the law of cosine

Q: solve x by using the law of cosine

A: We have been given the measurements of the right-angled triangle and the measurement of an angle and…

Q: Simplify without a calculator: 2 sin(15°)cos(15°) I| ||

A: answer = ?

Q: When working with equations, it is common to substitute ,2 cos? 0 with sin? 0-1 O True False

A: We have to find whether the given statement is true or false.

Q: If sec(x)=11/2 (in Quadrant-I), find, cos(2x)=

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Q: Use a calculator to solve the equation 12) cos x= -0.94

A: Consider a cosine function as, cosx=a Here, a is a constant. The mentioned function can be solved…

Q: Please find the exact value of cos 165 degrees

A: Find the value of cos(165°).

Q: alculate the value of cos(50° 30') with accuracy ɛ = 10-6

A: Here we have to find the value of cos(50°30')

Q: Suppose solving a trigonometric equation for solutions over the interval 30°, 360°2 leads to 3u =…

A: Given: 3u=180°,630°,720°,930° Determine the corresponding value of u. For 3u=180° 3u3=180°3u=60°

Q: Find all solutions in radians using exact values only. 2. COS ²(2x} = 1 +.

A: Square root both sides , then solve both sides by 2x.

Q: What is the difference between the particularr solutions and general solutions of a trigonometric…

A: These are the main difference between particular solution and general solution of trigonometric…

Q: Find the exact value of the expression. Do not convert to decimals.  cos(2arctan(4/3))

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Q: If 0s0<360°,then use your calculator and the reference angle to find two 0 values when cos 0…

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Q: Find all the angles [0, 27) that satisfy the equation sin(2x) = tan(x).

A: We know that ,  sin ( 2 x ) = 2sin ( x ) cos ( x )  and tan ( x ) = sin ( x ) / cos ( x )

Q: sin 2.

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Q: Complete the steps by applying trig identities to show that the left hand side of the equation is…

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Q: If y = cos -1 x, then y can terminate in quadrant ____ or ____.

A: All of the inverse functions use the first quadrant for positive values of x. Inverse of cosine…

Q: 4 cos? 20 -

A: Solve as quadratic

Q: solve for theta if 0 degrees&lt;theta&lt;360 degrees sin theta/2 -cos theta=0 theta=?      enter…

A: Given equation is By using the identity  we get

Q: b, 2sin [ csc ()] , Co: [sin () + tan' ()]

A: topic - trigonometric functions

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine as 200°: 0 - |degrees Cosine as 200°: 0-…

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Q: Find all solutions to each equation in radians. 1) 5 + sin 0 = 5 2) cos 40 =-

A: Given expression :1.