If sin θ =1/4 and 0 ≤ θ ≤π/2 (a) determine the EXACT value of cos2θ (b) determine the EXACT value of sin(θ/2

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A: Given - cos(α)=817  , tan(β)=512α lies in IV quadrant. , β lies in I quadrant. To find sin(α+β).…

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A: We have cos 90° =0cos 270°=0 Also Cosine is a periodic function. Its value repeats after each 360°.

Q: 1. If sin 0 =, find the exact value of the following, with <0<T. %3D а. Cos e

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Q: 14. Find the exact value of sin(-) if cos(r) 1 and 270° < x << 340°. ii) ii) - 2 iv) not listed

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A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

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Q: 8. Apply the formula for cos (A-B) to the identity sin 0= cos E -0) to obtain the addition formula…

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A: Cos2x=0Cos x=0x=π2,3π2,5π2--

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Q: 14. Find sin 0, given that cos0=Y,and tan 0 <0. V5 V59 a.- 8 5 C.- 8 d

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