cos theta= - 1/2 give a general formula and list six solutions?

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A: cos2 θ +sin2 θ =1 Cosine function takes value in between -1 and 1.

Q: Find the exact value of tan theta/2 Please show your solution and readable. I need asap. Thank you.

A: Topic = Trigonometry

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A: For the given question below is the answer.

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A: We have to verify the identity                                     sin2θ1+cosθ=1-cosθ

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Q: how do you solve this and can you show me step by step

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Q: 5. Solve 2 cos? ø + cos 20 = Ofor ø algebraically and state the exact value of the angles in radians…

A: Since you have submitted two questions, we'll answer the first question. For the second question…

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Q: 3. REPRESENT/SOLVE – Given the point (3, 4) on the terminal side of angle 0, find the EXACT trig…

A: Given,         The point 3,4 is on the terminal side of angle θ.

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A: Given,            -sin2θ-cos4θ=0

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Q: Find all solutions in radians. Approximate your answers to the nearest hundredth.   15 - 9 cos (6t -…

A: Given: 15-9cos (6t-5)=11