Use a sum or difference formula to find the exact value of the following. 2л Cos 15 2л sin 15 CoS 5 sin COS

Q: Which of these is equal to cos 19? A) sin 71° B) sin 81° C. cos 71° D) Cos 81°

A: We have to find cos19

Q: Use the product-to-sum identities to rewrite the following expression as a sum or difference. 3n cos…

A:

Q: 7. Which of the following is equal to cos 108°? A. sin 198° B. cos 198° C. sin 72° D. cos 72°

A:

Q: Add the sum and difference formulas for cosine to derive the following product to sum formula:  Cos…

A:

Q: Use exact values to show that each of the following is true.     cos 120 degree = cos2 60 degree 2…

A:

Q: Verify the given sum-to-product formula cos * + cos * = 2cos [(* + *)/2] cos * - */2}. Start with…

A:

Q: Find the value of the sum. cos(285°) cos(165°)

A: The given trigonometric expression is

Q: Which of the following expressions is NOT equivalent to sin75°? sin45° + sin30° O sin45°cos30° +…

A:

Q: Find the exact values of the following. 1. cos 585° 2. csc 600° 3. sec(-420°) 4. cot 4 117 5. sin…

A:

Q: Find the exact value of the following; Sin 165° + Sin 105°. 2 O 2/6 O -1

A: Sin105o = sin(60+45)               = sin60cos45 + cos60sin45       (using the formula sin(A+B) =…

Q: Which of the following correctly expresses sin (70) + sin (30) as a product? Select the correct…

A:

Q: 18) Use sum and difference formulas to find the exact value of the expression. cos 75°

A:

Q: C. Use sum and difference formulas to find exact values 57 5. tan 12 6. cos 15° D. Determine what…

A: note: as per our company guidelines we are supposed to answer only one question kindly post other…

Q: 2) Use the Sum and Difference formulas to evaluate the following expression cos (345°)

A: Formula ' s  1 ) cos ( A - B )=   cos A cos B + sin A sin B    2 )  cos ( 360 ° - A ) = cos A

Q: Use a sum or difference identity to find the exact sin 15° O = √6-1/2 4 o √6+√√2 4 √6-√√2 4 O √6+√√2…

A: We have to find the angle

Q: Use a sum-to-product formula to find the exact value of cos(285°) – cos(15°)

A: We will need the formula  With A=285 and B=15

Q: Use a sum or difference formula to find the exact value of the following. sin cos 15 10 + cos 10 sin…

A: given,

Q: practice question, I attached a photo

A: Consider the given values of sin(θ) and cos(θ) as

Q: Use the sum and difference identities to determine the exact value of the following expression. If…

A:

Q: Use a sum or difference formula to find the exact value of the following. 19n 197 sin COS 30 sin COS…

A: Given that sin19π30cos7π15-cos19π30sin7π15we know that…

Q: Use a sum or difference formula to find the exact value of the following. 25л 67 25 t sin cos cos…

A: NOTE: Refresh your page if you can't see any equations. . use the formula

Q: Find the exact value of the expression. sin 25° cos 35° + cos 25° sin 35° O 1 O 5 12

A:

Q: Use the product-to-sum identities to rewrite the following expression as a sum or difference.…

A: Solving the problem by the method of sum or difference of sine or cosine function.

Q: Express the given product as a sum containing only sines or cosines. sin (60) cos (40)

A:

Q: Given sin(α)=3/4 and π/2<α<π and sin(β)=−4/5 and 3π/2<β<2π Use sum and difference…

A:

Q: Use a sum or difference formula to find the exact value of the following. 25 Tt 25T + sin 42 cos Cos…

A:

Q: 11) Use sum-to-product or product-to-sum to find the exact value of each expression a. sin 195° ·…

A:

Q: Use a sum or difference formula to find the exact value of the following. cos 7 21 6n + sin 7 sin 21…

A: To find the sum

Q: 4

A: Recall the following double angle formulas:

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

A:

Q: Use a sketch to find the exact value of the following expression. 8. Cos 1 sin 10 8 cos 1 sin (Type…

A: We know cos(sin-1(x))= 1-x2 for all x in  [-1, 1]

Q: Use a sum or difference formula to find the exact value of the following. sin4π/7 cos17π/42 -…

A: Our aim is to find the exact value of the above expression.

Q: Which of the following expressions are equivalent to cos(20) .? tan(0) Choose all answers that are…

A: cos(2θ)tan θ =cos2θ - sin2θsinθcosθ              = (cos2θ - sin2θ) cosθsinθ             = cos3θsin…

Q: Find the exact value of cos 285° by writing 285 as a sum and using the sum identity.

A: Sum identity is cos(A+B)=cosAcosB-sinAsinB

Q: Use a sum or difference formula to find the exact value of the following. 19t sin 30 197 cos -+ cos…

A:

Q: Use a sum or difference formula to find the exact value of the following. 31n 11n 31n + sin 18 11a…

A:

Q: 12. sin 82.5° cos 37.5°

A: Since :  Sin(82.5°) Cos(37.5°).

Q: sin 54° sin 38* cos 38° cos 54 :: sin 52 : cos 36 : cos 52° :: sin 36*

A:

Q: Which of the following correctly expresses sin 0 + sin (70) as a product? Select the correct answer…

A: sinθ+sin7θ sin4θ - 3θ+sin4θ + 3θ Now, using the formula, sin(A + B) = sin A cos B + cos A sin B…

Q: Find the exact value of each of the following. 2411 sin (i) sin 101 1924 Cos 83 (ii) cos (iii) cos…

A:

Q: Find the exact value of the following expression:   sin(pi/12)cos(7pi/12) - cos(pi/12)sin(7pi/12)

A:

Q: Use a sum or difference formula to find the exact value of the following. 11 T 11 t sin 42 sin cos 7…

A: To find the value of  sinABC=sinBAC=sinCABsin90o16.76=sinB5=sinC16116.76=sinB5=sinC16⇒sinB=516.76,…

Q: Use exact values to show that the following is true. cos 120° = cos? 60° – sin?

A: We know that Therefore, we have

Q: 3. If cos (26°) = 0.899 and sin (26°) = 0.438. Find sin (64°)and cos (64°). Explain.

A: Given  cos26° = 0.899 sin26° = 0.438

Q: Use the sum-to-product identities to rewrite the expression. sin 18° + sin 10° Which expression is…

A:

Q: 10. Find exact value of each expression. (a) cos(75°) + cos(15°) %3D (b) sin(45°) cos(15°)

A:

Q: Find the exact value of each expression by applying trig formulas (Addition and Subtraction…

A: We have to find the exact values.

Q: Apply the sum and difference identities to find the exact value of the given expression.…

A: Given expression as

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

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.