This week in Precalc 11 we learned sine and cosine laws in the trigonometry unit. These laws are used for triangles when there isn’t a right triangle. In this blog post I will be focusing only on the sine law. Sine law can be used to find the side length of a triangle or an […]
Math 11
Core Competency Reflection – Precalc 11
Week 15 – Precalc 11
This week in Precalc 11 we started Trigonometry and learning about angles in all quadrants, where in Math 10 we only used quadrant one to solve angles. We started by changing SOH CAH TOA into its new form. Sinθ=y/r, Cosθ=x/r, Tanθ=y/x. Since we have started using all quadrants, when we have to solve for theta […]
Week 14 – Precalc 11
This week we worked on applications of Rational Expressions before we had our unit test, and the we worked on some review of grade 10 trigonometry. In this post I will talk about the applications of the Rational Expressions and an example of one equation. Applications of Rational Equations are word problems where you are […]
Week 13 – Precalc 11
This week in Precalc 11 we worked on solving rational equations using fractions. For this I was able to apply my previous knowledge from units to solve the fractions. We talked about two different ways to solve the equation, one of them being cross multiplying and the other one is finding a common denominator. There […]
Week 12 – Precalc 11
This week in Precalc 11 we worked on solving rational expressions by multiplying and dividing and we also learned how to write the non-permissible values. We first started off by simplifying radical expressions. When you are given an expression the first thing that you want to do is look if you can factor anything on […]
Week 11 – Precalc 11
This week in Precalc 11 we learned how to solve an inequality algebraically with parabolas. When you are given a graph that already has a parabola on it or you are given an equation, you are able to solve it using inequalities. If you are given a parabola that is opening up with the answer […]
Week 10 – Precalc 11
This week in Precalc 11 we continued to work on graphing quadratic equations and changing them into their different forms. We also learned how to find the equation of a graph when we were only given the vertex and another coordinate. The first step it to figure out what formula you are going to use […]
Week 9 – Precalc 11
In Precalc 11 this week, we continued to work on Quadratic equations and graphing them. We learned about the difference between general and standard form of the equation and how to graph equations and how to write an equation for the graph. General form is when the equation is in y=ax^2+bx+c and y=a(x-m)^2+n is standard […]
Week 8 – Precalc 11
This week in Precalc 11 we had another unit test and it was on solving quadratic equations. During the week we did a lot of review on the three different ways to solve them before we did out test which was on Wednesday. After we finished the test we spent the rest of the week […]