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Brian McLogan
Why do we add intervals of pi halves to our solution
👉 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
Tutorial for solving a trig equation with half angle and sine
👉 Learn how to solve trigonometric equations. There are various methods that can be used to evaluate trigonometric equations, they include by factoring out the GCF and simplifying the factored equation. Another method is to use a...
Brian McLogan
Complete the square to find the vertex and axis of symmetry
👉 Learn how to identify the vertex of a parabola by completing the square. A parabola is the shape of the graph of a quadratic equation. A quadratic equation can be written in the standard form (i.e. in the form y = ax^2 + bx + c) or it...
Brian McLogan
How to Apply the Rational Zero Test & Find the Remaining Zeros
👉 Learn how to find all the zeros of a polynomial that cannot be easily factored. A polynomial is an expression of the form ax^n + bx^(n-1) + . . . + k, where a, b, and k are constants and the exponents are positive integers. The zeros...
Brian McLogan
Finding the zeros by completing the square when you have a fraction
👉 Learn how to solve quadratic equations by completing the square. When solving a quadratic equation by completing the square, we first take the constant term to the other side of the equation and create a perfect square trinomial with...
Brian McLogan
Synthetically dividing with a fraction
👉 Learn how to divide polynomials by binomial divisors using the long division algorithm. A binomial is an algebraic expression having two terms. Before dividing a polynomial, it is usually important to arrange the divisor in the...
Brian McLogan
How to solve an equation with fraction powers in your exponent
👉 Learn how to deal with Rational Powers or Exponents. Exponents are shorthand for repeated multiplication of the same thing by itself. This process of using exponents is called "raising to a power", where the exponent is the "power"....
Brian McLogan
Learn how to simplify an equation with rational powers
👉 Learn how to deal with Rational Powers or Exponents. Exponents are shorthand for repeated multiplication of the same thing by itself. This process of using exponents is called "raising to a power", where the exponent is the "power"....
Coach Dan Blewett
How Pro Pitchers Decide What to Throw (and Where)
Learn about how the strike zone and the count in baseball influences where pitchers should aim and try to locate their pitches. You'll learn pitching strategy for pitch calling and pitch sequences.
Professor Dave Explains
Practice Problem: Hess's Law
If we want to find out some information regarding the enthalpy change of a reaction, but we don't want to perform the reaction, we can use Hess's law, which allows us to manipulate thermochemical data for related reactions. Let's...
Curated Video
Subtraction of Fractions: Creating Like Denominators
In this video, the teacher explains how to solve word problems involving subtraction of fractions with unlike denominators. The teacher uses models to visualize the fractions and demonstrates the process of creating like denominators by...
Brian McLogan
Learn how to find the value c that completes the square with a fraction, x^2 + 5x + c
👉 Learn how to find the value c that completes the square in a quadratic expression. A quadratic expression is an expression whose highest exponent in the variable(s) is 2. It is of the form ax^2 + bx + c where a, b, and c are constants....
Curated Video
Recognizing Fractions by Breaking Shapes into Equal Parts
In this video, mathematicians learn how to recognize fractions by breaking shapes into equal parts. The teacher uses examples of cookies and candy bars to explain the concept of fractions as parts of a whole. Students are taught to...
Brian McLogan
Solve trig equations with cotangent and sine
👉 Learn how to solve trigonometric equations using the zero product property. The zero product property states that when the product of two quantities is equal to 0, then either of the quantities is zero. When solving factored...
Brian McLogan
How to simplify dividing two monomials Math help
👉 Learn how to simplify expressions using the quotient rule of exponents. The quotient rule of exponents states that the quotient of powers with a common base is equivalent to the power with the common base and an exponent which is the...
Brian McLogan
Learning to Sketch an Angle Greater than One Period
👉 Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Calculus Unit 4 How to take the integral of square root of x
Calculus Unit 4 How to take the integral of square root of x
Brian McLogan
Solving a literal equation by solving for y with a fraction
We solve a literal equation just like any other equation. When we solve for a variable we need to isolate the variable meaning we need to undo the operations that are being applied to the variable. Make sure you apply the inverse...
Brian McLogan
Learn to divide a polynomial by a monomial
👉 Learn how to divide polynomials by a monomial using the long division algorithm. A monomial is an algebraic expression with one term while a polynomial is an algebraic expression with more than one term. To divide a polynomial by a...
Brian McLogan
How to determine the quotient of a whole number and a mixed number
👉 Learn how to divide mixed numbers. To divide mixed numbers, we first convert the mixed numbers to improper fractions. After we have converted the mixed numbers to improper fractions, we can then multiply the first fraction by the...
Brian McLogan
Determine slope interecept form from standard form
👉 Learn how to write the equation of a line in a point-slope form. The equation of a line is such that its highest exponent on its variable(s) is 1. (i.e. there are no exponents in its variable(s)). There are various forms which we can...
Brian McLogan
How to Find the Amplitude and Period of the Cosine Equation
👉 Learn how to graph a cosine function. To graph a cosine function, we first determine the amplitude (the maximum point on the graph), the period (the distance/time for a complete oscillation), the phase shift (the horizontal shift from...
Brian McLogan
Pre-Calculus - Evaluating a Natural Logarithm with a Radical in the Denominator
👉 Learn how to evaluate natural logarithms. Recall that the logarithm of a number says a to the base of another number say b is a number say n which when raised as a power of b gives a. (i.e. log [base b] (a) = n means that b^n = a)....