Brian McLogan
Learn how to evaluate the sum of two angles with tangent
👉 Learn how to evaluate the tangent of an angle in degrees 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...
Brian McLogan
Evaluating for the sine of an angle using the difference formula
👉 Learn all about sum and difference angle identities. In this video playlist, you will learn how to evaluate, solve, simplify and verify using sum and difference angle identities. We will evaluate using angles not found on the unit...
Brian McLogan
Solving a trigonometric equation with applying pythagorean identity
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric equations, they include factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
Solving a trigonometric equation by isolating sine
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric identities, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
How do we classify the angles - Obtuse, straight, acute, right
Learn all about angles. An angle is a figure formed by two rays sharing a common endpoint. An angle can be classified as acute, right, obtuse, straight or refrex. An acute angle is an angle which measures less than 90 degrees. A right...
Brian McLogan
Find the missing length of a triangle using trig functions without a calculator
Find the missing length of a triangle using trig functions without a calculator
Brian McLogan
What Does the Inverse Graph of Sine Look Like
👉 Learn how to evaluate the inverse of reciprocal trigonometric functions. Recall that the reciprocal trigonometric functions are given by the ratio of 1 and the corresponding trigonometric function. When an angle is unknown but the...
Brian McLogan
Determine the quadrant an angle is in with degrees and minutes
👉 Learn how to determine the quadrant of an angle given in radians. Recall that 1 radian is the distance on the circumference of the circle that is equivalent to the radius of the circle. Also, recall that the circumference of a circle...
Brian McLogan
What are bearings and how do we use them
👉 Learn how to solve the word problems with trigonometry. Word problems involving angles, including but not limited to: bearings, angle of elevations and depressions, triangles problems etc are solved using trigonometry. To be able to...
Brian McLogan
How to create a right triangle to compose trig functions
👉 Learn how to evaluate an expression with the composition of a function and a function inverse. Just like every other mathematical operation, when given a composition of a trigonometric function and an inverse trigonometric function,...
Brian McLogan
Why do we add intervals of 2pi to our solution
👉 Learn about the angles on the unit circle. A unit circle is a circle which radius is 1 and is centered at the origin in the cartesian coordinate system. To construct the unit circle we take note of the points where the unit circle...
Brian McLogan
What is the trigonometric graph sine
👉 Learn the basics to graphing sine and cosine functions. The sine graph is a sinusiodal graph with x-intercepts at x = 2n*pi, maximun value of 1 at x = pi/2 + 2n*pi and minimum value of -1 at x = -pi/2 + 2n*pi. The cosine graph is a...
Brian McLogan
Master Evaluating the double angle for Sine, Cosine and Tangent given an equation and constraint
Master Evaluating the double angle for Sine, Cosine and Tangent given an equation and constraint
Brian McLogan
Master Solving word problems with changing angles
Master Solving word problems with changing angles
Brian McLogan
Master Solving Trigonometric word problems with bearings
Master Solving Trigonometric word problems with bearings
Curated Video
Categories of Quadrilaterals (Part 1)
Identifying quadrilaterals in a hierarchy based on their properties.
Curated Video
I WONDER - What Is A Triangle?
This video is answering the question of what is a triangle.
Brian McLogan
Learn how to solve a trigonometric equation with sum and difference formulas
👉 Learn how to solve equations using the angles sum and difference identities. Using the angles sum and difference identities, we are able to expand the trigonometric expressions, thereby obtaining the values of the non-variable terms....
Curated Video
Classifying Parallelograms: Examining Angles and Sides
In this video, the teacher explains how to classify parallelograms based on their angles and sides. They discuss the properties of a parallelogram, rhombus, rectangle, and square, highlighting their similarities and differences. By...
Let's Tute
Criteria for Congruency of Triangles
In this video, the teacher explains the criteria for proving similarity and congruency between triangles, using different combinations of angles and sides. The video covers the AAA, AA, AAS, SAS, SSS, and RHS criteria, and provides...
Brian McLogan
Find the direction and magnitude of the resultant vector of two forces
Find the direction and magnitude of the resultant vector of two forces
Brian McLogan
How to find the missing angle of a kite
👉 Learn how to solve problems with kites. A kite is a four-sided shape (quadrilateral) with two equal pairs of adjacent sides and the diagonals are perpendicular. Some of the properties of kites are: each pair of adjacent sides are...
Brian McLogan
Find the measure of x given using the interior angle theorem
👉 Learn how to solve for an unknown variable in the interior angle of a polygon. A polygon is a plane shape bounded by a finite chain of straight lines. The interior angle of a polygon is the angle between two sides of the polygon. The...
Brian McLogan
Finding the value of x using alternate interior angles - Online Tutor - Free Math Videos
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how...