Write the following expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression. 2 sin 22.5° cos 22.5° Write the following expression as the sine, cosine, or tangent of a double angle. Select the correct choice below and fill in the answer box to complete your choice. (Simplify your answer. Type your answer in degrees. Use integers or decimals for any numbers in the expression.) O A. 2 sin 22.5° cos 22.5° = sin

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A: This question is related to trignometry , we will use the concept of refrence angle to solve it.

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

A: Given expression is : 2sin45°cos45° Here above expression can be be written as sine double angle as:…

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Q: If the sine of an angle is 2425, what is the sine of the angle's complement? 24 25

A: See the details solution in below

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Q: Find an angle θ with π/2<θ<2π that has the same: Sine as π/6: θθ = Cosine as π/6: θθ =

A: solution- we know that π = 180 so we have to calculate π/6 in sine &amp; cosine   180/6 = 30 so sine…

Q: If A = 32 degree, B = 70 degree , and a = 3.8 inches, use the law of sines to find b.

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Q: 5 46 29

A: Using Law of Sines  5sin290=xsin460 x=5 sin460sin290 x= 7.418786 Rounding off to nearest tenth…

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: Using your calculator, find ∅ to the nearest degree if the sin of ∅ = 0.6691

A: Given: sinϕ=0.6691 To evaluate: The value of ϕ in degree.

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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: Question 3 Find a second angle (between 0° and 360°) that has: A. The same sine value as 40°:…

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Q: Write the expression as the sine, cosine, or tangent of an angle. sin 50° cos 5° + cos 50° sin 5°

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Q: Find the sine, cosine, and tangent of each acute angle of the triangle. Leave answers in simplest…

A: We will find the sine,cosine and tangent of the acute angles in the following step

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A: 1.

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Q: Convert the following angle from degrees to radians. Express your answer in simplest form. 150°

A: to convert radian multiple by pi/180

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…

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A: Since you have asked multiple questions in a single request, we will be answering only the 1st…

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A: Given sin5π12cosπ4-cos5π12sinπ4 Take sin5π12cosπ4                      ⇒sin5 × 18012 . cos1804⇒sin75…

Q: Write the expression as the sine, cosine, or tangent of an angle. tan 130° − tan 80°/1 + tan 130°…

A: Using tan(a-b) =tan(a) - tan(b) /(1+tan(a) tan(b)

Q: Write the expression as the sine, cosine, or tangent of an angle. cos 140° cos 20° – sin 140° sin…

A: Given expression is cos140°cos20°-sin40°sin20° we have to write the expression as the sine , cosine…

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

A: We know that  cosA+B=cosAcosB-sinAsinBA=2π7B=7π5

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A: Given query is to find indicated angle.

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A: we have find the reference angle then sine and cosines of both. here i am giving my handwritten…

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Q: Convert the following angle from degrees to radians. Express your answer in simplest form. 270°

A: We need to convert the following angle in radian θ = 270°

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Q: Use the law of Sines to find the indicated side x. 45° 53° 6cm

A: Law of Sines: In a triangle, ABC, a, b, c are three sides and ∠A, ∠B, ∠C are three angles, then asin…

Q: Write the expression as the sine, cosine, or tangent of an angle. sin 70° cos 10° + cos 70° sin 10°

A: Given expression is sin70° cos10°+cos70° sin10°. To write the expression as the sine, cosine or…

Q: Write the expression as the sine, cosine, or tangent of an angle cos 140° cos 50° – sin 140° sin 50°

A: Formula:

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

A: Given:       2sin75∘ cos75∘

Q: 5 Determine which of the two acute angles has a sine of 11 A 4/6 B 5 C 5 11 sin

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Q: In the right triangle shown below, what is the sine of angle 07 28.7 11.9 26.1 O 0.414 O 2.191 1.100

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Q: Evaluate the sine, cosine, and tangent of the angle without using a calculator. (If an answer is…

A: Given,         θ=-570°

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Q: Write the expression as the sine, cosine, or tangent of an angle. sin cos 7 cos 5 sin 5

A: Consider the given expression as, E=cos4π7cos7π5-sin4π7sin7π5 Consider the required formulae,…

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

A: Trigonometric

Q: Without using a calculator, compute the sine and cosine of 315° by using the reference angle. (Type…

A: In this question we have to find the reference angle and in which quadrant the angle is and sin(315)…

Q: Find an angle θ with 0∘<θ<360∘ that has the same: Sine function value as 240∘ θ =  Cosine function…

A: Based on the values of the trigonometric function in the different quadrant it's value gets changed.…

Q: Use the Law of Sines to find the indicated side x. (Assume a = 155. Round your answer to one decimal…

A: Here a=155we find the side x

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.