Find the exaet values of sin 20 and cos 20 for cos 0= 3 on the interval 0° ses 90°. 18 V35 17 cos 20= 18 sin 20=- 18 35 sin 20- 18 17 cos 20= 18 sin 20= 0.3287, cos 20=-0.9444 35 sin 2@= 18 103 cos 20= 128

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A: 6) a) Given:   sec-12            let sec-12=x then x=π4 b) csc-11    then x=π2

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A: " Since you have asked multiple question, we will solve the first question for you. If you want any…

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A: given that 2sin2θ=cos2θ to prove that tan2θ=0.5 proceed as follows  2sin2θcos2θ=1tan2θ=12tan2θ=0.5

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A: This question is based on Trignometric Formulas.

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Q: I just want to check if my answer is right and can you also show me the steps too

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Q: 5) Find the exact value of sin 80° cos 290°- cos 80° sin 290°

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Q: 1) Calculate Sin(5x)=-√(2)/2 2) Calculate Sin 15° in two ways: a)Using half-angle formulae. b)Using…

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Q: Find the exact value of sin 20, cos 20, tan 20, and the quadrant in which 20 lies. 45 0 in quadrant…

A: Given query is to find the value of indicated trigonometric functions.

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A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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A: Use properties of right triangle to get value of thetha

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Q: 2. Find the exact value of the following expressions: а) sec-- cos + sin b) sin 12 4 6

A: topic - trigonometric ratios

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Q: Which equation can be used to find JL 27° K 13.6 cm 7. O cos(27) = # cos(27) = 114 O sin(27) = # O…

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Q: 4. If v3cot0 = 2cos0, then evaluate sin?0 – cos20 |- %3D

A: See the details solution below

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A: The detailed solution is given below Thank you

Q: 7. Verify the identity 1+cos 2x+2sin² x = 2 1 and <θ<π, find sin- 8. Given tan O 3 2 9. Use half…

A: Explained below

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A: Given: sin(θ)=0.7218,    sec(θ)=1.1111,   cos(θ)=0.6128

Q: Find the exact value.. 1. Cos 70°cos40°+sin70°sin40° 2. Sin 7π/12 using the fact the 7π/12= π/3 +π/4

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Q: 4 Given: sine 37 and t <0 < 2 Find the exact value of: tan20 24 A) 7 Mr. Johnson 15 B) 8 Mrs.…

A: we will use the trigonometry

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Q: 94) Find the exact value Cos lutv) that 4=5 구 gven -3,4n Q1 and v in 03) tan and cos

A: Topic - trigonometric Identities

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Q: 1. Find the values of sin 20, cos 20 and tan 20, given: 9 3n a. tan 0 if n<0 < 40 2 3n b. sin 0 if <…

A: Giventanθ=940 ifπ&lt;θ&lt;3π2sinθ=-12 if 3π2&lt;θ&lt;2π.To findsin2θ, cos2 and tanθ