Evaluate the expression without using a calculator. sin 60° cos 30° + sin 30° cos 60°

Q: Write the following expression as the sine, cosine, or tangent of a double angle. Then find the…

A: Given expression: 2 cos2 π8-1   Double angle identity of cosine: cos 2θ=2 cos2 θ-1

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

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

Q: Rewrite the expression as a sum or difference, then simplify if possible. 10 sin 6x cos 4x

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Q: Fill in the value that makes the expression true. 1 sin(72) = cos( 2. cos(43) = sin(

A: Cos(x) = Sin(90-x)  Sin(x) = cos(90-x)

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: What is the height? Enter sin 34 in your calculator and select the correct answer. y Then, redraw…

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Q: Rewrite the expression as a sum or difference, then simplify if possible. 8 sin 7x cos 3x

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Q: Rewrite the expression as a sum or difference, then simplify if possible. 6 sin 8x cos 4x

A: Formula is as below :

Q: Write the following in terms of sin ? and cos ?; then simplify if possible. (Leave your answer in…

A: Consider the given trigonometric function. csc θ cot θ The objective of this part is to write the…

Q: Rewrite the expression as a sum or difference, then simplify if possible. 4 sin 6x cos 2x

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Q: Rewrite the expression as a sum or a difference: 10 cos(7x) sin(3x)

A: use trignometric identities:-

Q: Use a calculator to evaluate the expression. cos ? (67°) + sin ? (67°) cos ? (67°) + sin ² (67°) =…

A: Pythagorean identity.      cos2(θ)+sin2(θ)=1

Q: Use a calculator to evaluate the expression in both rac 7. tan-(-1.7) 8. cos- 0.24

A: we can find the value of the given inverse trigonometric functions by applying directly to the…

Q: Find the exact value of the expression, if possible. Do not use a calculator. 30) 30) sin-1 sin B)…

A: Since sine is periodic, the arcsine of sine of x is equal to x plus 2kπ when k is integer:   arcsin(…

Q: REVIEW: Calculate the following. Do not use a calculator. Given: sin 20° = 0.342, calculate sin 50°.

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Q: Convert all of the terms to sines and cosines and simplify to find the expression that completes the…

A: Topic- trigonometry function

Q: Write the expression as the sine, cosine, or tangent of an angle. sin 70° cos 5° + cos 70° sin 5°

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Q: Write the expression as the sine, cosine, or tangent of an angle. sin 60° cos 5° + cos 60° sin 5°

A: The following formula is used in solving the given function.

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(7/15) + tan(4z/5) 1 –…

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Q: Simplify the expression sin 29.5° cos 29.5°. 8

A: Given18sin(29.5°)cos(29.5°)we know that double angle identitiessin(2θ)=2sinθ.cosθ

Q: Evaluate the expression without using a calculator. (cos 30°)2 − (sin 30°)2

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Q: Evaluate the expression below without using a calculator. cos(arccos (4/5)- arctan(3)) =

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

A: Given that: sinB+cosB.cotB

Q: Evaluate the expression below without using a calculator.  cos(arccos(4/5)+arctan(3))=________

A: cos(arccos(4/5)+arctan(3)) We have to evaluate the expression below without using a calculator.

Q: 3 sin? 30° + 3 cos2 30°

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Q: Simplify the expression. Do not evaluate. cos?(5x) – sin?(5x)

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Q: 3. Evaluate without calculator a. cos 120 degree. b. sec (pi/3) c. cot ( 19 pi / 6)

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Q: Write the expression as the sine, cosine, or tangent of an angle. cos 4x cos 5y + sin 4x sin 5y

A: Given, cos 4x cos 5y + sin 4x sin 5y  We have to write the expression as the sine, cosine, or…

Q: Rewrite the expression 4 sin 7x cos 3x as a sum or difference, then simplify if possible

A: The given expression is 4sin7xcos3x. Identity used: sinacosb=12sina+b+sina-b

Q: Find the exact value of the following expressions. Do not use a calculator. (a) sin (660°) 15л (b)…

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

Q: Rewrite the expression as a sum or difference, then simplify if possible 8 sin 4x cos 2x

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Q: Evaluate the sine, cosine, and tangent of each angle. Do not use a calculator. (If an answer is…

A: To find the given sine, cosine and tangent values.

Q: Write the expression sin 40° cos 20° + cos 40° sin 20° as the sine, cosine, or tangent of an angle.…

A: Use the following identity. sinA+B=sinAcosB+cosAsinB

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(14°)…

A: Simplifying the the given equation

Q: Find the exact values of the given expressions. (Calculator answ sin- (sin ) tan ( sin sin- a) b) 21

A: To find the exact value of the given expressions

Q: Write the expression as the sine, cosine, or tangent of an angle. cos 110° cos 50° - sin 110° sin…

A: Given the expression  Cos 110° Cos 50° - Sin 110° Sin 50°  we need to solve this. As we know that…

Q: Simplify the trigonometric expression: 1 csc e – sin 0

A: Given :                   Simplify the expression :…

Q: Evaluate the expression, sin2 π/17 + cos2 π/17,  without using a calculator.

A: Evaluate sin2π17+cos2π17 without using calculator.

Q: Evaluate the expression without using a calculator. sin−1(cos(2?))   answer in radians, please

A: Given the trigonometric expressionsin−1(cos(2π))

Q: Write the expression as the sine, cosine, or tangent of an angle. sin(x) cos(8x) + cos(x) sin(8x)

A: Sin (A+B) = Sin A x Cos B + Cos A x Sin B

Q: Write the expression as sin, cosine, or tangent of an angle cos( 5pi/7)…

A: Consider to given trigonometric expression, cos5π7cos2π5-sin5π7sin2π5 Use the trigonometric…

Q: CI Use your calculator to find the sine of 36°. O A sin 36 ° » 0.5878 sin 36 ° » 0.809 C sin 36 ° »…

A: We have to use calculator to find the sin of 36°

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(18°)…

A: In this question we will use basic of trigonometry i.e sin2θ=2sinθcosθ In first question we will put…

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) cos (36°) –…

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Q: Rewrite the given expression as a sum or difference. a) sin 4 (목)sin (플) 3

A: a) The given expression is sin5π4sin2π3. Calculate the sum or difference of the given expression. b)…

Q: Simplify the expression. Do not evaluate. cos?(5x) – sin2(5x)

A: You can solve this Question bye this method

Q: Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. (a) 2 sin(18°)…

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Q: Write the expression as the sine, cosine, or tangent of an angle. co(즉) Co()-sin(즉) an(쓸) 4л 2л 5

A: The given expression is cos2π7cos4π5-sin2π7sin4π5. Write the expression as the sine, cosine, or…

Q: Write the expression sin 25° cos 5° + cos 25° sin 5° as the sine, cosine, or tangent of an angle.…

A: Given that sin25°·cos5°+cos25°·sin5°   It known that sinA+B=sinA·cosB+cos A·sinB By using this…