Write each product as a sum or difference with positive arguments. 5 sin 50 cos 20 5 cos 70 – 5 sin 30 5 cos 30 + 5 sin 70 5 sin 70 + 5 sin 30 5 sin 70 – 5 cos 30 2 2 2

Q: Express the given product as a sum or difference containing only sines or cosines. cos(6x)cos(8x)

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Q: Express the product as a sum containing only sines or cosines. cos(30) cos(20) O cos?(602) 5( cos e…

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Q: + co Write each expression as a single trigonc 21. sin 3x cos 2x + cos 3x sin 2x 23. cos 5x cos x –…

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Q: Write the product as a sum: 20 sin(23u)sin(9v)

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Q: Write the sum as a product: cos(10.9t) – cos(6.5t) =

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Q: Determine the quotient of 4(cos 250 - i sin 250) and 2 (cos 15 - i sin 15) A 8 (cos 265 + i sin 265)…

A: We find out quotient of given function . Follow 2nd step.

Q: Write the product as a sum: 10 sin(56)cos(2b) %3|

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Q: Find each quotient and express it in rectangular form. 2(cos150° + isin150°) ÷ 8(cos210° + isin210°)…

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Q: Find the value of the product. 9 cos(37.5°) cos(7.5°)

A: Given9 cos(37.5°) cos(7.5°)

Q: 6. Find the exact value of each of the following expressions: (a) sin(20°) cos(80°) – cos(20°)…

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Q: Write the sum as a product: cos(7.2c) – cos(6.8c)

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Q: Write the product as a sum: 4 cos(42u)sin(16u)

A: First we use 2cosAsinB=sin(A+B)-sin(A-B) formula.…

Q: Find, if possible, AB and BA. (If not possible, enter IMPOSSIBLE in any sin 3 1 0 -1 0 A = -3 4 B =…

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Q: Write the product as a sum. 3 cos(6x) cos(11x)=

A: Given- 3cos6xcos11x To write- The above product as a sum. Formula used- 2cosa·cosb=cosa+b+cosa-b

Q: Write the sum as a product. cos(5x) – cos(9x)

A: cos5x-cos9x=-2sin5x+9x2sin5x-9x2=-2sin14x2sin-4x2

Q: True or false: If cos 3 then -+ 2nT or 3 3 57 + 2nn for any integer n. 3 3

A: True

Q: Use a product-to-sum formula to rewrite cos 6w cos 5w as a sum or difference. cos 6w cos 5w Osin

A: Given,          cos6wcos5w

Q: Use the product-to-sum formulas to rewrite the product as a sum or difference. 4 cos 2θ cos 4θ

A: We have to use the formula

Q: Show that the expression 3 sin x + 7 sin x = cos? x - 4 can be reforumalated to be written as 4 sin?…

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Q: Express the product as a sum containing Sines or Cosines; Cos (3a) Cos (2a) Cos 3a O (Cos a + Cos…

A: Given expression, cos3α cos2α                          ...(1)

Q: Find the product of 2 (cos 30 + sin 30 i) and 3( cos 20 + sin 20 i) 6(cos 10 + sin 10 i) 6( cos…

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Q: II. Write each expression as a product. 4.) cos 6x + cos 3x

A: Please find attachment for the details solution

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: Write the sum as a product: cos(15.5æ) + cos(10.3x)

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Q: Write each product as a sum or difference with positive arguments. -5 cos 20 sin 100 -5 cos 80 + 5…

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Q: If sin B = -0.7853, then <B = O -0.0137 -51.74 O 0.0137 O 51.74

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Q: Write the sum as a product: cos(10.16) – cos(9.56) .

A: use the difference formula for trigonometric functions to evaluate the values.

Q: Find the value of the product. 2 sin(52.5°) sin(82.5°)

A: Given:   2 sin(52.5°)sin(82.5°)To determine the given product.

Q: Which of the following numbers is the smallest?     (a) sin (π4)sin π4   (b) sin (π)sin π   (c)…

A: Hence option (b) is correct.

Q: If 2 sin 52.5° sin 97.5°: V2+VA then 2. A = ||

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Q: Write the sum as a product. cos(11x) + cos(8x)

A: Given,           cos11x + cos8xWe know that,           cosα+cosβ=2sinα+β2sinα-β2

Q: O Cos 6x- cos.2X,

A: Dear student as per our rule in one session we can only solve one question. Please post the other…

Q: 12. Write the product as a sum. 3 cos 4x cos 7x

A: To write the product as a sum, 3cos4xcos7x

Q: Write each product as a sum or difference with positive arguments. -4 cos 8A sin 2A -2 sin 10A – 2…

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Q: 4. Express the given product as a sum containing only sines or cosines 170 30 sin cos |

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Q: cos^2(7x)-sin^2(7x) b). sin15°cos15°

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Q: Write the sum as a product: cos(16.2x)+cos(5.2x)

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Q: Write the sum as a product. cos(4x) – cos(6æ)

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Q: 17. Rewrite the expression as a sum or difference, then simplify if possible. Sin(5x). Sin(3x) |a.…

A: 17. We rewrite the expression sin (3x) as a       sim or difference18 we rewrite the expression…

Q: Find each product. Write each answer in 13. (3 – 5i)(6 + 7i) = 14. (6+ 6i)(3 – 6i) = 15. (7 – 7i)(10…

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Q: Express the given product as a sum containing only sines or cosines. cos (30) cos (80)

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Q: Write each product as a sum or difference with positive arguments. -2 sin 40 sin 50 - sin 90 – sin 0…

A: The explanation of answer as follows :-

Q: sin 80 do Evaluate the integral 7+ cos 80 using the substitution u = 7+ cos 80. sin 80 do 7+ cos 80…

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Q: Find the exact value of each expression. 1) cos (2) 3) cos 2. 5) sin¬1 –1 7) cos -1 11 9) sin1 11…

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Q: Write the product as a sum or difference with positive arguments.

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Q: Write the product as a sum: 18cos(44z)cos(21z)

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Q: Find the value of the product. 7 cos(52.5°) cos(7.5°)

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

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Q: the expresSIon 4 sin 60 f(0) - sin 30. Cos 30 1. f(0) = 5 sin 30 2. f(0) 4 cos 30 – sin 30 3. f(0) =…

A: F(θ) = (4Sin6θ/Cos3θ) - Sin3θ Fact : Sin2θ = 2SinθCosθ

Q: 1 Rewrite each expressions as a sum or difference. 1 -3cos 6y - sin3y

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