57 sin COS- 12 co- 12 TT -sin 4 - 4

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

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

Q: Write the given number as a trigonometric function of an acute angle less than 45°. 1. sin 85°

A: Given: sin85ο

Q: Use Double Angle Identities to simplify the following trig expressions. Your answer should use only…

A: We have to simplify the given expressions using Double angle identities.

Q: Use an identity to find the value of the following expression. Do not use a calculator. sin' + cos?…

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Q: Verify the identity by converting the left side into sines and cosines.

A: Trigonometric identities can be verified by simplifying the left-hand side of the inequality so as…

Q: Use the Law of Sines to find the indicated side x. (Assume a = 13. Round your answer to one decimal…

A: Given that , ∠A=37.5°∠B=28.10° and we assume a=13Since , total angle of a triangle is 180°then ,…

Q: 40 Use a Pythagorean identity to find the value ot 58 Suppose ABC is a right triangle, and the…

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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:…

Q: 48 Suppose ABC is a right triangle, and the Cosine of A is Use a Pythagorean identity to find the…

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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

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

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Q: Use the Law of Sines to find the indicated side x. (Assume a = 11. Round your answer to one decimal…

A: From the given figure, Angle C can be obtained as follows. C=180°-A-B=180°-37.5°-28.1°=114.4° Now we…

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: Use the Law of Sines to find the indicated side x. (Assume a = 170. Round your answer to one decimal…

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

A: we have to find the exact value of expression,cos2 15o - sin2 15o

Q: Write the trigonometric expression in terms of sine and cosine, and then simplify. csc(θ) − sin(θ)/…

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Q: Find the sin and cosine of 210° using the right triangles

A: To find the sin and cos of 210° using the right triangles.

Q: use the double-angle identities to answer the following: If sin x = 12/13 and cot x < 0, find…

A: Here we use double identity of sine function Sin(2x)= 2sinxcosx We know that csc(2x) is the…

Q: Use the figure below and the given values to find the specified side length and trigonometric…

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Q: If cose = 4 , and sin0 < 0, what is the value of tan20. Select one: a. 25/24 O b. -24/25 C. -24/7 O…

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Q: Write the expression as the sine, cosine, or tangent of an angle. 3 COS sin)sin() COS - 7

A: Note that: cos x cos y-sin x sin y=cos (x+y)

Q: Write the expression as the sine, cosine, or tangent of an angle. Then find the exact value of the…

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

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: Write the expression as the sine, cosine, or tangent of an angle. co() co() - sin(4) an() 5

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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: Use the given triangle to evaluate the expression. If necessary, express the value without a square…

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Q: Write the expression as the sine, cosine, or tangent of an angle. tan(t/20) + tan(4/5) 1- tan(1/20)…

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Q: Write the expression as the sine, cosine, or tangent of an angle. Then find the exact value of the…

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Q: Use the Law of Sines to find the indicated side x. (Assume a = 17. Round your answer to one decimal…

A: Law of  sines:

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

A:

Q: #5. Write the expressions in terms of sine and cosine and then simplify each of the following to an…

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Q: Use Double Angle Identities to simplify the following trig expressions. Your answer should use only…

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Q: trig identities to find the ratio.  If cos(?)=−0.8, what is cos(−?)?

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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: Without using a calculator, compute the sine and cosine of 210° by using the reference angle. (Type…

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Q: Use the Law of Sines to find the indicated side x. (Assume a = 15. Round your answer to one decimal…

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Q: Use Double Angle Identities to simplify the following trig expressions. Your answer should use only…

A: As per guidelines we can solve only one question at a time so if you need more answer kindly repost…

Q: For the angle 210°, find the reference angle, the quadrant of the terminal side, and the exact value…

A: Given angle =210°

Q: 48 Suppose ABC is a right triangle, and the Cosine of A is Use a Pythagorean identity to find the 50…

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Q: Write the expression as the sine, cosine, or tangent of an angle.…

A: Given query is to rewrite the expression.

Q: 24. If tanA = 5 and A in quadrant III, sinB = 12 3 and B in quadrant IV, find the value of cos( A +…

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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 expression as the sine, cosine, or tangent of an angle. Then find the exact value of the…

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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: 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: Use an identity to find the value of the following expression. Do not use a calculator. sin 12 2 +…

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Q: Use the given information to find the exact value of the expression. 21 a lies in quadrant II, and…

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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…