Rules of circle geometry, including: angles, arcs, chords, secants, and tangent lines. My parent functions and their inverses for algebra, trig and the conics. Download Trigonometry All-In-One Cheat Sheet and more Trigonometry Cheat Sheet in PDF only on Docsity Trig. My 25 x 25 multiplication table with practice sheet and tips Double Angle FormulasDouble Angle Formulas Half Half Half Angle FormulasAngle Formulas cos2x 1- 2sin 2x cos2x 2cos2x - 1 2 1 cos 2 sin 2 x x 2 1 cos 2 cos 2 x x + x x x 1 cos 2 1 cos 2. I include Microsoft Word documents so teachers can easily modify them to suit their needs. I include PDF documents so students can freely access them on their mobile devices. Harold's Triangles Cheat Sheet: Docx: Law of Sines, Cosines and Tangents: Harold's Trig Proofs Cheat Sheet: Docx: My proofs of three (3) trig formulas that allow us to easily derive ALL the trig formulas: Harold's Precalculus Cheat Sheet: Docx: My rectangular, polar, and parametric coordinate equations for conics sections: Harold's Exponential.
I am lazy and would rather provide a cheat sheet to my students than to write it all down once more. These are my notes created after giving the same lesson 4-5 times in one week. Trigonometry Cheat Sheet Basic Identities Pythagorean Identities Double-Angle Identities Sum/Difference Identities Product-To-Sum Identities Triple-Angle.
Albert Einstein said, "If you can't explain it simply, you don't understand it well enough." I strongly believe that simple is better than complex.
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