SOLUTION: Find all solutions if 0° ≤ 𝜃 < 360°. When necessary, round your answers to the nearest tenth of a degree. (Enter your answers as a comma-separated list.) sin^2 2θ − 4

Algebra ->  Trigonometry-basics -> SOLUTION: Find all solutions if 0° ≤ 𝜃 < 360°. When necessary, round your answers to the nearest tenth of a degree. (Enter your answers as a comma-separated list.) sin^2 2θ − 4       Log On


   

Question 1178292: Find all solutions if 0° ≤ 𝜃 < 360°. When necessary, round your answers to the nearest tenth of a degree. (Enter your answers as a comma-separated list.)
sin^2 2θ − 4 sin 2θ − 1 = 0
Answer by Solver92311(821) About Me  (Show Source):
You can put this solution on YOUR website!


Let then



Solve for and with the quadratic formula,

Then



and




So



and



You can do your own arithmetic and calculator work.

John

My calculator said it, I believe it, that settles it

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