John Rhodes, Math Teacher at Senioritis.io

John Rhodes
June 21, 2023
Trigonometry

The Cosine Of The Difference Of Two Angles Formula In Trigonometry

cos(A-B)= cosAcosB+sinAsinB Cosine of the difference of two angles A and B is given by the formula: cos(A-B) = cos(A)cos(B) + sin(A)sin(B) where cos(A) represents the cosine...

John Rhodes
June 21, 2023
Trigonometry

Mastering The Trigonometric Identity: The Formula For Cos(A+B)

cos(A+B)= cosAcosB-sinAsinB The formula for cos(A+B) is: cos(A+B) = cos(A)cos(B) – sin(A)sin(B) This formula is derived from the trigonometric identity for the cosine of a sum of...

John Rhodes
June 21, 2023
Trigonometry

Master The Pythagorean Identity With This Trig Identity Formula: Csc^2X = (1-Sin^2X)/Sin^2X

csc^2x 1+cot^2x Recall the Pythagorean Identity: – sin^2x + cos^2x = 1 Dividing both sides by cos^2x, we get: – sin^2x/cos^2x + cos^2x/cos^2x = 1/cos^2x Using trig...

John Rhodes
June 21, 2023
Trigonometry

Discover The Alternative Form Of Sec^2X Using The Sine Function

sec^2x 1+tan^2x The expression sec^2x is the square of the secant function of angle x. The secant function is the reciprocal of the cosine function, so we...

John Rhodes
June 21, 2023
Calculus

The Average Rate Of Change In Math: Applications In Real-World Scenarios

average rate of change The slope of the line through (a, f(a)) and (b, b(a)) fo a function y = f(x) between x=a and x=b The average...

John Rhodes
June 21, 2023
Algebra

The Axis Of Symmetry: Simplifying Math Calculations And Designing Efficient Structures

axis of symmetry The vertical line that divides a parabola into two symmetric parts In mathematics, the axis of symmetry is a line through a two-dimensional shape...

John Rhodes
June 21, 2023
Calculus

Even Functions: Symmetry In Math And Physics

even function A function y = f(x) is even when f (-x) = f(x) for each x in the domain of f. An even function is a...

John Rhodes
June 21, 2023
Calculus

Master Algebra: The Intercept Form Of A Straight Line Equation

intercept form A quadratic function written in the form f(x) = a(x – p)(x – q) where a ≠ 0 In algebra, the intercept form is a...