I realize that this is like 2 days late, but here's our group's vector slideshow. I hope this is helpful
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I made this slideshow about Harmonic Motion. Hopefully it's more helpful that what Nabitty said (he wasn't very clear was he?). You can email me with questions. Hello! Sorry this is so late and that I haven't updated the website in a while...
9.1 Solving right triangles 9.2 Law of Sines 9.3 Law of Cosines 9.4 Finding area of oblique triangles This section is very similar to what we did in Geometry all those years ago. I found a website with a great explanation of what to do if you're trying to solve an SSA triangle. Here's the link: http://www.regentsprep.org/regents/math/algtrig/att12/lawofsinesAmbiguous.htm
Hello! Keith sent me a link to a Purplemath thing. It walks through how to solve a few trig equations and is overall really helpful and very clear. If you feel like you failed that quiz (I know I feel that way) check this website out:
http://www.purplemath.com/modules/solvtrig.htm Thanks Keith! Y'all should send me stuff, use the contact tab to do that This is the helpful picture that Schlake drew. It's a little confusing, sorry. Email me with questions. If you want to print it out, there's a link at the bottom.
HI! I couldn't really find any not confusing notes online so I just took a picture of my handwritten notes and I'll put it up here. If you can't read anything, for sure you can email me!
A point of clarification is that when there's a picture of a coordinate plane with a half circle, the half circle bit is the part of the unit circle you'll take your exact values from. So if it's not in those restrictions, it's either undefined or you can use a reference angle (I'm not totally sure how to deal with that yet). You can also always look and see if Kahn Academy has anything (hint:it does). So I hand-wrote a review using previous quizzes and homework. For the graphing bit of ch7, I did not include any fitting sinusoidal curves so you're on your own for that. I would review your own notes and quizzes also, because I sort of chose random problems. If you can't read anything, you can maybe email me and I can clarify, but probably not. Also I have not made a key, so tough luck. Because I made this, I won't be making a list of helpful links, so if you want, you can look at the previous posts on here. If you want me to email the pictures to you for whatever reason, email me.
The most important thing to remember when presented with weird things that you have to find the sin/cos/tan etc. for is that YOU NEED TO RELATE IT BACK TO THE UNIT CIRCLE.
For example: if you need to find sin(22.5) think about how you can get it to the familiar numbers on the unit circle. 22.5x2=45 so you can use a half angle formula and solve for sin(45/2) If you want to review the unit circle click the unit circle link in the sidebar. |
AuthorI'm Maya, I'll occasionally add notes or something if I find it useful Categories
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