Semester 2 Review

Hi Ms. V,

Overall, in Semester 2, things were pretty interesting. We started off with less lessons than the first semester. We had Raymond read us Storytime for the first time, and it was hilarious. However, on the math end, towards the end of the semester, we started to do previews into calculus. Things like parametric equations and limits. Overall, second semester was pretty fun and interesting. Since this is the last blog we will do probably, I will take this time to say thank you for the wonderful years I've had in your class. I thoroughly enjoyed learning from you, even if webassign was a thing (just kidding). We ended with trigonometry, which we had previously somewhat covered. However, now we should be mastered in it.

Thanks for a great two years,

Kaili Chiu

Trig Review Week

Hello,

Today I will talk about trigonometry. Trigonometry can be a simple or hard topic to learn, depending on if one is comfortable with the identities and many other oddities in the subject. Some terms to for sure be familiar with are sine, cosine, tangent, cosecant, secant, and cotangent. These terms describe parts of a triangle. Sine is equivalent to the opposite side divided by the hypotenuse and so on and so forth. Trigonometry as we learned during this week uses certain identities to solve and verify trigonometric statements. In verifying, we are given an equation in which the left and right side are equivalent, although they have different variations, and we must manipulate only one side to make them both appear the same. In solving, we solve with the aid of identities and find answers in terms of angles of pi. Sometimes we are asked for a range or a general equation. The general equation just means that we must add a 2npi or npi depending on whether it is sine, cosines, or tangent.

That's all for today,
Kaili Chiu