. In AABC if m LC = 90, AC = 8, and AB 17, then cos B = _? %3D

Q: 2. Given tane = -√√3, 90° ≤ ≤ 180°, the exact value of sine can be written in the form √a b value of…

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Q: Establish each identity given in attachment.

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Q: Gabriela needs to find the cosine of . If she knows that cos=, how can she use the double angle…

A: It is known that π6 can be written as 2π12. Formula used: Here we shall use the formula:…

Q: 6. If sin a = -1, what is cos a?

A: The trigonometric functions include 6 functions. The trigonometric terms can be calculated using the…

Q: Establish each identity given in attachment.

A: Given equation: asinθ+bcosθ2+acosθ-bsinθ2=a2+b2

Q: In a right triangle ABC, If sin B = 3 / 5, and cos B = 4 / 5 ,then tan B = ?

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Q: 1. and AC In ДАВС, АВ І ВС, АВ %3 b. sin C = 3. Find: d. cos C a. cos A c. tan A

A: Since you have posted multiple subparts, as per our policy we will answer first three subparts.…

Q: A 1. If 0° < 0 < 90° and cos 0 = , find cos . %3D '42

A: Given cosθ=570&lt;θ&lt;90

Q: 1. Given that cos A=- 35 determine the exact value of cos 2A .

A: You are given that cos⁡A = 3/5 and asked to find the exact value of cos⁡2A, which is the cosine of…

Q: 4.) Prove the identity. csc e Csc 20 2 cos e

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Q: 4. If 90° < 0 < 180° and cos O , find cos 20. 25 7 25 ㅇ 16 25 16 25

A: Given: 90°&lt;θ&lt;180° cosθ=-35 To find: cos2θ We know that, cos2θ=2cos2θ-1             Also, we…

Q: If 2ª = 3° then 1.4 O 1.5 O 1.6 O 1.7 O 1.8 II

A: From the given problem;   2a=3b   Now taking log on both sides.   log2a=log3b....(1)   From the…

Q: 2. If 90° <0 < 180° and cos 0 = -, find cos 20. %3D 7. 25 16 O - 25 16 25 U

A: Hence option (c) is correct.

Q: Verify each identity. 9) cos (90° - 0) = sin e 10) sin (0+ 270°) = -cos 0

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Q: Find 0, if 0° <0 < 360° and 1 and 0 in III. 2 cos 0 =

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Q: csc(x) sin (x) cot(x) = cos(x) Which of the following is not an appropriate step to prove the given…

A: use trignometric ratio identity

Q: 2. If sin 0 = – and 0 E QII, find cos 0. Give an exact answer. 3

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Q: 5. If 90° < 0 < 180° and cos 0 = — 1, find cos 20. ㅇ 곯 ○ 16 25 0-곯 ㅇ

A: Given that,

Q: If tan 55° = 10/7, which is true? tan 35⁰ = 7/10 O cos 35º = 7/10 O tan 55⁰ = 7/10 Otan 35º = 10/7

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Q: 1. If 90° << 180° and cos=-, find sin.

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Q: . If csc A = -4 and sec A > 0, which correctly gives the exact values of cot A and cos A? A. cotA=…

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Q: 4. Determine the exact value for 5TT cos cot 3TT sec

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Q: 15. Use AABC to complete the following statements. b. cos () = m2_ a. sinA = cos c. Solve the…

A: A+B+C=180 And since C=90 so A+B=90 sin theta=opposite/hypotenuse cos theta=adjacent/hypotenuse

Q: If 0° <0<90° and cos @ = , find cos I3I

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Q: 10) Evaluate using Cofunction Identities 2 Cos? 60° - Sec 150° + cot2 30°

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

Q: Find the value of each trigonon 2) cos A 8 6. 10

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Q: 1. In AABC right angled at B, AB=24 cm, BC=7 cm. Determine (i), sin A.cos A

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