Brian McLogan
Evaluate the expression for the composition of inverse sine and cosine
👉 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
Determine the quadrant and sketch the triangle
Determine the quadrant and sketch the triangle
Brian McLogan
Master evaluating the six trig functions when given an equation to draw a triangle
Master evaluating the six trig functions when given an equation to draw a triangle
Brian McLogan
Use your trig identities to find the missing values of a triangle
👉 Learn how to find a missing side length of a right triangle. A right triangle is a triangle that has 90 degrees as one of its angles. The trigonometric identities of right triangles give us the relationship between the angles of a...
Brian McLogan
Given any point, evaluate your six trig functions - Cool Math
👉 Learn all about evaluating trigonometric functions with triangles. In this playlist, we will learn how to evaluate, sine, cosine, tangent, cotangent, secant, and cosecant when given the sides of a triangle. If we have missing sides we...
Brian McLogan
Evaluate any point with constraints for your trig functions
👉 Learn how to evaluate the six trigonometric functions given some constraints. When given the value of one trigonometric function, we can use a right triangle with one of its legs on the x-axis and the other leg, perpendicular to the...
Brian McLogan
Master given a point, evaluate the six trigonometric functions
Master given a point, evaluate the six trigonometric functions
Brian McLogan
Given a trig equation, create a triangle to evaluate six trigonometric functions
👉 Learn how to evaluate the six trigonometric functions given the value of one of the trigonometric functions. When given the value of one of the trigonometric functions of an angle, we can evaluate the values of the other trigonometric...
Brian McLogan
Learn to evaluate for the secant of an angle without using a triangle
👉 Learn how to evaluate trigonometric functions of a given angle. Given an angle greater than 2pi in radians, to evaluate the trigonometric functions of the given angle, we first determine the smallest positive coterminal angle of the...
Brian McLogan
Pre-Calculus - Find the Double Angle of Tangent When Given a Triangle with Restrictions
👉 Learn how to evaluate the double angle of sine. The value of the sine of double a given angle can be obtained given the value of the sine of the angle. The value of the sine of double a given angle is obtained using the formula sin(2u)...
Brian McLogan
Solve trig equation with cosecant
👉 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
Given SSA learn how to determine when there is only one triangle
👉 Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions,...
Brian McLogan
Master determining the missing sides of a triangle using trig functions
Master determining the missing sides of a triangle using trig functions
Brian McLogan
What are the six trigonometric functions
Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter and section. The purpose of posting my free video tutorials is to not only help students but allow teachers the resources to flip...
Brian McLogan
Master evaluating the six trig functions when given a point on the unit circle
Master evaluating the six trig functions when given a point on the unit circle
Brian McLogan
Pre Calc unit 3 How to use sine to find the missing side of a triangle
Pre Calc unit 3 How to use sine to find the missing side of a triangle
Curated Video
Perimeter Calculation of a Geometric Shape
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 1H Q9, which involves finding the perimeter of a geometric shape. By the end of the video, the learner will know how to calculate the perimeter of...
Brian McLogan
Determining the length of a kite using the pythagorean theorem
👉 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
How to evaluate the six trig functions when given a constraint and value
👉 Learn how to evaluate the six trigonometric functions given some constraints. When given the value of one trigonometric function, we can use a right triangle with one of its legs on the x-axis and the other leg, perpendicular to the...
Brian McLogan
How To Find the Angle Given an Equation and Constraint
👉 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...
Professor Dave Explains
Practice Problem: Calculating Ionic Radius
Different ionic compounds will adopt different lattice structures, which are essentially different geometries. If we know the lattice structure of a compound and we know some information about the dimensions of its unit cell, we can do...
Curated Video
Trigonometry: Finding the Length of the Hypotenuse of a Right Triangle
This video shows the process for solving the problem presented in IGCSE A June 2018 paper 2H Q8, which involves finding the length of the hypotenuse of a right triangle. Students will understand the concept of a right triangle and the...
Brian McLogan
Using triangles to evaluate for the difference formula of tangent
👉 Learn how to evaluate the secant of the sum or difference of two angles using the sum/difference formulas. To do this, we first use the Pythagoras theorem to obtain all the sides of the right triangle in the unit circle. Recall that...
Brian McLogan
ACT SAT Prep How to determine the SINE of an angle given a right triangle and it's sides
ACT SAT Prep How to determine the SINE of an angle given a right triangle and it's sides