Learn the foundational concepts of Precalculus with online math instructors who teach on Zoom, Google Meet and Telegram all the important subject matter of Precalculus courses from rational numbers and Limits and continuity to Series, Venn diagrams, Probability and combinatorics. Find Precalculus WFH freelancers on November 28, 2023 who work remotely. Read less
For problem solving, you will learn to solve trigonometric ratios using right triangles, the unit circle, reference angles and special angles (like sin 45°, cos 60°, tan 60°) and investigate the inverses of trigonometric functions using a calculator. In precalculus, your teacher will cover solving trigonometric equations and trigonometric ratios to find a side length or an angle measure, and how to solve a right triangle. The Law of Sines and Cosines will be covered in greater detail and how to solve a triangle; using the sine formula and Heron's formula to find the area of a triangle is also covered in depth.
Often subjects with polar form and finding the modulus and argument of a complex number, or converting complex numbers from rectangular to polar forms need hired tutoring. Quadratic functions can also be pretty tough, solving a quadratic equation by factoring or completing the square, for example, isn't that intuitive unless you are very good at math or have been shown how to logically think about these problems. Probability with discrete and continuous random variables is another subject area many students struggle in, learning how to find z-values and understanding why values of normal variables work the way they do, learning about distributions of sample means and the Central Limit Theorem and learning how to normal distributions to approximate binomial distributions are common areas of difficulty for high school students.