4. Rewrite the following as a single trigonometric expression. Then evaluate. cos140°cos110° + sin140°sin110°

Q: Evaluate the following expressions. 17π sin-¹ (cos ¹77) 9

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Q: Simply the expression. cos^2theta/sin^2theta +1

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Q: If Sin(A)=Cos(3A) then Cot(4A)

A: Given  Sin A=Cos 3A To evaluate Cot 4A=?

Q: find the exact value of cos (a+b), if a,b in Quadrant IV with sin a= -3/5 and cos b= 5/13

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Q: Find the exact value of each expression: (a) sec(arctan(2)) (b) cos(2 sin 13 (a) (b)

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Q: 13 If cot(x) (in Quadrant-I), find 14 cos(2æ)

A: Solution is given as below:

Q: 4. Find the exact value of each of the following expressions. Do not round your answers. (a)…

A: (1) Given: sin157.5° Applying half angle identity,…

Q: Suppose that 2 is an angle in quadrant 1 and that cos a = 41 Compute the exact value of cos (G). 841…

A: Given cosα=41841 and given α2 is an angle in first quadrant. We have to find the value of cosα2. We…

Q: Suppose cos ? =15/17 and ? lies in the 4th quadrant. Choose one of those ways to find sin ?.

A: Solution is in step 2

Q: 20 B) If Tan0 , find without using tables the values of (cose, cot0 and csce) %3D 15

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Q: Use the exact value of cos (11π/6) and the half-angle identity for sine to show that an exact value…

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Q: 4. Use an appropriate half angle identity to find the exact value of cos15°.

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Q: If tan 0 9 and P(0) is in QIII, what is the value of cos(20) ? 41 41 40 41

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Q: 119 Suppose that is an angle in quadrant 4 and that cos B 2 Compute the exact value of 169 %3D (2).…

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Q: Suppose that cos(2α)=1/3, 360∘<2α<450∘. Find the six trigonometric values of α.

A: Determine the sign of the function values in which of the quadrant as follows.

Q: 3) If Sin A= 12/13 Then without using calculator Find the value of Cos 2A O 25/169 O (-119)/169…

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Q: 15 180° < a< 270°, then find the exact value of each of the following. If tan a = 8 a. sin b. cos 2…

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Q: 8. Find the exact value of each expression. 3V34 tan cos 34

A: Solved below

Q: Perform the indicated operation 1. Cos60° + sin60°

A: We have to evaluate the expression: cos60°+sin60° We know the exact value of the trigonometric…

Q: Use a sum or difference formula to find the exact value of the following. 6T TC Cos 42 TC cos + sin-…

A: Solve equation

Q: Use a calculator to find the value of the following expression rounded to two decimal places. cos 7…

A: Given that an inverse cosine function and we need to fine the angle in radian.

Q: Use your calculator to find, correct to 4 decimal places: a cos 74° 6 sin 132° c tan97°.

A: Given trigonometric ratios are cos 74° sin 132° tan 97°

Q: Use a sum or difference formula to find the exact value of the following. TC Cos cos sin - 5 15 15

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Q: 4. Find the exact value of each of the following. (a) sin 405° (b) tan( –150°) (c) sec 3 (d) csc 2

A: We know that,  sin2nπ+θ=sinθ; n∈I                  ⋯⋯1tan-θ=-tanθ…

Q: Find the algebraic expression for the following trigonometric expression tan(arccos 2x + arctan x²)

A: Give expression is tanarccos2x+arctanx2 We have to find the algebraic expression from…

Q: Use the given information to find the exact value of the expression. sin θ = 24/26 , θ lies in…

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Q: 2. Given sin B = %3D in QII, find the exact value of the following: 13 1. sin(2B) b. cos (26) C. tan…

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Q: Determine the exact value of cach of the following: a) cos 60° b) sin 30° c) cot 150° d) tan 120° e)…

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Q: 2) Use a calculator to find the value of each expression rounded to tow decimal places. a. cos-1 0.6…

A: To find the value of  cos-1(0.6)  and  tan-1(-3.27) to two decimal places.

Q: Find an exact value for each of the following: 31A sin 12

A: We have to use trigonometric identities to solve the given problem. Sinπ\3 = √3/2 Sin π\4 = 1/√2 Cos…

Q: Evaluate the following expression. Type answers exactly. If the answer does not exist, then type…

A: We have to evaluate arccoscos17π12.

Q: Find the exact values for sin 0, cos 0, and 109 60 91

A: We can find the answer as below

Q: 1. State the exact value of the following a) tan 1 (v3) =1Response b) arccos(cos()) =2Response c)…

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Q: Use the given information to find the exact value of the expression. sin θ = 15/17, θ lies in…

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Q: 2. Apply the compound angle formulas to solve the following: a) tan 750 (in degrees) b) cos (+)

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Q: Simplify the following trigonometric expression Cos ) by 1+CSC 0 Multiply 1-csc 0 CSC () 1+ csc 0

A: The given expression is cosθ1-cscθ1+cscθ1+cscθ

Q: Given that cos θ = − 3/5 and that θ is in QIII, find the exact values of sin θ, tan θ, csc θ, sec θ,…

A: As cos θ = (Base) / (Hypotenuse) = -3 /5. Cos θ is negative in quadrant III. Find the perpendicular…

Q: -12 180° < 0 < 270°, determine the remaining five 13 9. Given sin0 = trigonometric values.

A: sin2θ +cos2θ =1  ⇒  cos(θ) = ±1-sin2θ. tanθ = sinθcos(θ)    and   cotθ = cosθsin(θ). sec θ =1cosθ…

Q: Use the ALEKS calculator to evaluate each expression. Give your answers in radians. Round them to…

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Q: What is cos 6 if sin 0 and 0 is in quadrant III - V24 - No correct answer. V24 15 O O O

A: We have  given sinθ=-15 and θ is in quadrant III We know  cosθ=±1-sin2θ=±1-125=±245 Since, angle θ…

Q: 9. Use the trigonometric ratio cos e= 0.6798 to determine which of the following is the correct…

A: To find the correct value of theta :

Q: Determine sin (cos a) if a = 1500°. Do not include the degree symbol in your answer. -1 Provide your…

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Q: Use the given information to find the exact value of cos 20. 21 O lies in quadrant I sin 0 = 29

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Q: Suppose that sin A = 1/4 in quadrant 2 and sin B = - 1/3 in quadrant 3. Find cos (A + B

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Q: calculator

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Q: 4. s in quadrant C

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Q: Use a sum or difference formula to find the exact value of the following. 13t cos 15 13л cos + sin…

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Q: If sin(θ)= √77/ 9 and θ is in the 2nd quadrant, find the exact value of cos(θ)

A: Given: sinθ=779 We know that the trigonometric identity; sin2θ+cos2θ=1

Q: Simplify (cos(7w)+cos(5w))/ (sin(7w)+sin(5w)) to an expression involving a single trigonometric…

A: To simplify (cos(7w)+cos(5w))/ (sin(7w)+sin(5w)) to an expression involving a single trigonometric…

Q: Find the exact value for the following two questions. cos 5?/12 = sin 165° =

A: To calculate the exact value of trigonometric functions