👉 Learn how to evaluate the cosine of an angle in radians using the sum/difference formulas. To do this, we first express the given angle as a sum or a difference of two (easy to evaluate) angles, then we use the unit circle and the...

👉 Learn about the special right triangles. A special right triangle is a right triangle having angles of 30, 60, 90, or 45, 45, 90. Knowledge of the ratio of the length of sides of a special right triangle enables us to solve for any...

It explains how to find the values of trigonometric functions for the allied angles i.e angles whose sum or difference is a multiple of 90.

This video teaches how to reflect a triangle over the x-axis and y-axis without using a graph by using coordinates. It explains the quadrants of the coordinate plane and how the reflection affects the position and orientation of the...

For their size and impact, hurricanes are often called the greatest storms on Earth. They expend a tremendous amount of energy through the water cycle, and through wind, to maintain the balance of the atmosphere. Known by different names...

It introduces the concept and the derivation of distance formula in order to calculate the distance between two points in the Cartesian plane.

In this video, students learn how to reflect points over the x- and y-axes using a coordinate plane. The teacher explains the importance of plotting points correctly and provides examples of reflecting points in different quadrants.

This video explains how to determine the constant of proportionality from a graph. It demonstrates the process using an example of time and distance. The constant of proportionality can be found by finding the ratio of y to x, and it...

In this online video we will learn Introduction to coordinate geometry, what is cartesian coordinate system, quadrants, x-axis, y-axis in plane

For their size and impact, hurricanes are often called the greatest storms on Earth. They expend a tremendous amount of energy through the water cycle, and through wind, to maintain the balance of the atmosphere. Known by different names...

For their size and impact, hurricanes are often called the greatest storms on Earth. They expend a tremendous amount of energy through the water cycle, and through wind, to maintain the balance of the atmosphere. Known by different names...

In this video, students learn about reflections and rotations on a coordinate plane. The video explains how to determine the quadrant of a point based on its signs, and how to reflect a figure over the y-axis. It also covers how to...

In this video, students will learn how to find the trigonometric coordinates for any angle on the unit circle. The lesson explains the process of reflecting coordinates across the axes and changing signs based on the quadrant. By using...

In this lesson, students will learn how to translate shapes across the X&Y axes using a coordinate plane. They will understand the common mistakes to avoid when plotting points and moving shapes. Through step-by-step examples, they will...

In this video, the teacher explains how to find the distance between two points on a coordinate grid. The lesson focuses on understanding coordinate grids, ordered pairs, and how to calculate the distance between points on the same axis...

For their size and impact, hurricanes are often called the greatest storms on Earth. They expend a tremendous amount of energy through the water cycle, and through wind, to maintain the balance of the atmosphere. Known by different names...

For their size and impact, hurricanes are often called the greatest storms on Earth. They expend a tremendous amount of energy through the water cycle, and through wind, to maintain the balance of the atmosphere. Known by different names...

How to graph trigonometric functions.

In this video, a teacher explains the different quadrants of a coordinate plane and demonstrates how to plot points using positive and negative coordinates. The video also shows examples of connecting plotted points to create shapes like...