Instructional Video7:54
Brian McLogan

When given a triangle of SAS use law of cosines to find the remaining parts

12th - Higher Ed
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Instructional Video6:34
Brian McLogan

How to find the missing lengths using law of cosines

12th - Higher Ed
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Instructional Video3:00
Brian McLogan

Verify an identity with double angle identities

12th - Higher Ed
👉 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)...
Instructional Video3:21
Brian McLogan

Learn how to simplify a trig expression by factoring out a GCF

12th - Higher Ed
👉 Learn how to simplify identities by factoring. Just like in normal algebraic expressions, trigonometric identities can be simplified by factoring out the GCFs from the terms of the identities, then common trigonometric identities like...
Instructional Video0:43
Brian McLogan

Convert the equation of a line to polar form

12th - Higher Ed
Convert the equation of a line to polar form
Instructional Video2:24
Brian McLogan

Integrate using u sub and trig sine and cosine

12th - Higher Ed
👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as indefinite integral or as a definite...
Instructional Video2:04
Brian McLogan

How to use the inverse cosine function to find the missing angle of a triangle

12th - Higher Ed
👉 Learn how to find a missing angle 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 gives us the relationship between the angles of a right...
Instructional Video2:04
Brian McLogan

Identifying reflections over multiple functions

12th - Higher Ed
👉 Learn how to identify transformations of functions. Transformation of a function involves alterations to the graph of the parent function. The transformations can be dilations, translations (shifts), reflection, stretches, shrinks,...
Instructional Video6:11
Brian McLogan

Word Problems with trigonometry and triangles

12th - Higher Ed
👉 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...
Instructional Video7:59
Brian McLogan

Given a point find the six trigonometric functions of the angle

12th - Higher Ed
👉 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...
Instructional Video2:33
Brian McLogan

Using a triangle to and word problem to find the height of a wall

12th - Higher Ed
👉 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...
Instructional Video3:04
Brian McLogan

How to use trigonometry values to solve a word problem - Learn math online

12th - Higher Ed
👉 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...
Instructional Video4:23
Brian McLogan

Evaluate the six trigonometric functions for the given real number

12th - Higher Ed
👉 Learn how to evaluate the six trigonometric functions of a given angle. When given an angle we locate the angle on the unit circle. Then using the coordinate of the terminal side of the angle on the unit circle and the definitions of...
Instructional Video5:12
Brian McLogan

Where do the pythagorean theorems come from

12th - Higher Ed
👉 Learn all about the different trigonometric identities and how they can be used to evaluate, verify, simplify and solve trigonometric equations. The identities discussed in this playlist will involve the quotient, reciprocal,...
Instructional Video4:31
Brian McLogan

Applying the law of cosines when given SAS

12th - Higher Ed
Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The law of cosines is used in determining the lengths of the sides or the measures of the angles of a triangle when no...
Instructional Video5:46
Brian McLogan

Different representations of polar points

12th - Higher Ed
Different representations of polar points
Instructional Video2:21
Brian McLogan

Derivative of trig and in chain rule

12th - Higher Ed
👉 Learn how to find the derivative of exponential and logarithmic expressions. The derivative of a function, y = f(x), is the measure of the rate of change of the function, y, with respect to the variable x. The process of finding the...
Instructional Video2:04
Brian McLogan

How to use the inverse cosine function to determine the missing angle

12th - Higher Ed
👉 Learn how to find a missing angle 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 gives us the relationship between the angles of a right...
Instructional Video2:43
Brian McLogan

Learn how to evaluate the three trig functions given a trig equation and constraint

12th - Higher Ed
👉 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...
Instructional Video4:23
Brian McLogan

Learn how to evaluate the six trig functions given an equation and constraint

12th - Higher Ed
👉 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...
Instructional Video3:34
Brian McLogan

How to use special right triangles to evaluate for cosine of 45 degrees

12th - Higher Ed
👉 Learn how to evaluate trigonometric functions using the special right triangles. A right triangle is a triangle with 90 degrees as one of its angles. A special right triangle is a right triangle with the angles 30, 60, 90 degrees or...
Instructional Video12:06
Brian McLogan

How to use the law of cosines with your calculator (SAS)

12th - Higher Ed
How to use the law of cosines with your calculator (SAS)
Instructional Video2:18
Brian McLogan

Prove an identity by adding two fractions

12th - Higher Ed
👉 Learn how to verify rational trigonometric identities involving the addition and subtraction of terms. To verify trigonometric expression means to verify that the term on the left-hand side of the equality sign is equal to the term on...
Instructional Video6:15
Brian McLogan

How to find three different representations of a polar point

12th - Higher Ed
How to find three different representations of a polar point