Solve 3sec²𝜃 – 2tan²𝜃 – 4 = 0 and sin𝜃 + 1 = cos𝜃

🌈 Solving Trig Equations ⭐️
+2πn, why and when?

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SOLVE on the interval [0, 2π)
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❤️ Solve cos𝜃 + √3 = cosx, and cos4x = –√3 /2

🧡 Solve 4sin²𝜃 – 3 = 0 on the interval [0, 2π) vs. "all" solutions

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SOLVE for all possible radian solutions.
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💛 Solve 2cos𝜃sin𝜃 = cos𝜃

💚 Solve 2sin²𝜃 – 3sin𝜃 + 1 = 0

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SOLVE on the interval [0, 2π)
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💙 3sec²x – 2tan²x – 4 = 0

💜 sin𝜃 + 1 = cos𝜃
Check for extraneous at the end of this video:

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SOLVE on the interval [0º, 360º)
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❤️ Solve sin2𝜃 – √(3)/2 = 0

🧡 Solve 4tan²𝜃 + 5tan𝜃 = 6

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SOLVE on the interval [0, 2π)
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💛 Solve 2sin²𝜃 + sin𝜃 – 1 = 0

💚 Solve 5(sin𝜃 – 1) = 5

💙 Solve 7tan𝜃 = 3√3 + tan𝜃

💜 Solve 2sin𝜃cos𝜃 + cos𝜃 = 0

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SOLVE for all possible radian solutions.
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❤️ 2cos𝜃 – 1 = 0

🧡 Solve 4sin𝜃 – 1 = 2sin𝜃 + 1

💛 sec𝜃csc𝜃 + √2csc𝜃 = 0

💚 cos²𝜃 + sin𝜃 = 1

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