#trigonometry notes

[er-cryptid]

Addition and Scalar Multiplication

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[thestudyingpaladin]

👩🏾‍💻 02. 27.19||

Today in Public Speaking we worked on our group presentations in class. My groups topic is female serial killers— I’m so excited for this presentation. This evening was Trigonometry lecture, there’s too many identities to memorize in this module, my brain hurts haha.

🎧 Let Me— GOT7

[doctorwestcott]

Would anyone be interested in a copy of my trig and chemistry notes every Saturday? Like this post to let me know and comment what kind of master posts you want!

[whenstudyblooms]

『08.18.17』- 《32/100》 These are the trig notes I tried to post but there was a problem in the process >.< I attempted to make that popular header style I see in a lot of studyblrs, and I think it turned out to be pretty decent :3 「Quick tip: In studying math, it's best to write out in words the process of solving something with a formula. This increases your understanding of the problems~」

[er-cryptid]

Vectors with i and j [Ex. 3]

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[er-cryptid]

Applying Rolle's Theorem with Trigonometry [Ex. 1]

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[er-cryptid]

Angle Quadrant Locations in Degrees

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[er-cryptid]

Common Triangle Formulas

Pythagorean Theorem r^2 = x^2 + y^2

Sine sinθ = opposite / hypotenuse sinθ = y / r

Cosine cosθ = adjacent / hypotenuse  cosθ = x / r

Tangent tanθ = opposite / adjacent tanθ = y / x