John Rhodes, Math Teacher at Senioritis.io

John Rhodes
July 7, 2023
Calculus

Understanding the Trigonometric Identity: Finding the Value of sin(A-B)

sin(A-. b) To find the value of sin(A-B), we can use the trigonometric identity: sin(A-B) = sin(A)cos(B) – cos(A)sin(B) This identity allows us to express the difference...

John Rhodes
July 7, 2023
Calculus

Using the Trigonometric Sum Formula to Find the Value of sin(A+B)

sin(A+. b) To find the value of sin(A+B), we will use a trigonometric identity known as the sum formula for sine: sin(A+B) = sin(A)cos(B) + cos(A)sin(B) This...

John Rhodes
July 7, 2023
Calculus

Understanding the Absolute Value of a Number: A Complete Guide to Calculating Non-Negative Values

|x| The expression |x| represents the absolute value of a number x The expression |x| represents the absolute value of a number x. The absolute value of...

John Rhodes
July 7, 2023
Calculus

Understanding the Tangent Function and its Behavior with Negative Angles

tan(-x) The tangent function (tan) is a trigonometric function that relates the ratio of the opposite side to the adjacent side of a right triangle The tangent...

John Rhodes
July 7, 2023
Calculus

Understanding the Cosine Function: Exploring the Identity and Symmetry of cos(-x)

cos(-x) The cosine function, written as cos(x), is a trigonometric function that relates the angle x to the ratio of the length of the side adjacent to...

John Rhodes
July 7, 2023
Calculus

Understanding the Concept of sin(-x): Evaluating the Sine of Negative Angles and Its Relationship with the Positive Counterpart

sin(-x) The expression sin(-x) represents the sine of the negative of x The expression sin(-x) represents the sine of the negative of x. To evaluate this expression,...

John Rhodes
July 7, 2023
Calculus

Determining sin^2(2x) using the double angle identity for sine

sin^2x (Power to Double Angle) To determine sin^2(2x), we can use the double angle identity for sine, which states that sin(2x) = 2sin(x)cos(x) To determine sin^2(2x), we...

John Rhodes
July 7, 2023
Calculus

Formula for cos^2x in terms of Double Angle

cos^2x (Power to Double Angle) cos(2x) = 2cos^2(x) – 1 To find the formula for cos^2x in terms of double angle, we’ll start with the double angle...