5 arctan 12 Let 0 What is the exact value of cos 20?

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A: The distance of (-3,-1) to origin is =r=(-3-0)2+(-1-0)2=10cosθ=xr=-310sinθ=yr=-110

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A: Given that: θ=arcsin49 in the first quadrant.

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A: To find:sec-17.9

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A: solution:-using trigonometry identitiescosx=1secx1+tan2x=sec2xtantan-1x=x

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A: The objective is to find an exact value for sin θ.

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A: Given: -

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A: We know that: Sin2θ+Cos2θ=1And,CosCos-1(θ)=θ.

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A: Given:      cos θ = -1/5

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A: Given,  tan[cos-1(3/4)]  = ? Let's assume  x = cos-1(3/4)      then          cos x = 3/4…

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Q: If tan 0 8 and cot o = 13 with 0 and o in the first quadrant, find the exact value %3D sin(0 – ø).…

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A: We have unit circle x2+y2=1 Assume that x=cosθ and y=sinθ so that they can satisfy the unit circle.…

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Q: sec θ = 13/12 and θ between 3 π/2 and 2 π, find exact values in reduced form for: tan θ: sin(2 θ):…

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