Inverse Trig equations

Probably it’s the most tricky and difficult topic throughout all High School Math.

Prerequisites:

• Unit circle
• Reference angle & Angle in standard position
• Inverse functions

Area, perimeter, surface, volume of shapes (Geometry)

Cheatsheets for calculating area, perimeter, surface, volume of…

Transformations (GEOMETRY)

Transformation means something’s changing, transforming.

Distance between points & lines

Distance of two points on x-y axis?

Rational & irrational numbers

A rational number can always be expressed as a fraction of two integers.
vice versa, a irrational number…

Stem and Leaf Plots (Stats)

A Stem and Leaf Plot is a special table where each data value is split into a "stem" (the first digit or…

Circle

“The circle is arguably the most fundamental shape in our universe.” — Sal Khan

Arc length

Pythagorean Theorem (TRIANGLE)

Pronounced: Pe~'tha-gor-rean 'Theor-rem
In a right angled triangle:
the square of the hypotenuse is equal…

Three Terms ratio problem

It takes 54 minutes for 4 people to paint 6 walls.
How many minutes does it take 6 people to paint 7 walls?

• 4 p 1 wall: 54 / 6 = 9 minutes, then:
• 1 p 1 wall: 9 * 4 = 36 minutes, then:
• 1 p 7 wall: 36 * 7 =…

Proportional relationship

Linearly, if x and y has a relationship that one is another’s proportion, then they have a proportional…