๐ Algebraic Symbols: Exam Short-Note
๐ข 1. Basic Math Symbols
- Digits: The numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. All numbers are written using these!
- Operations: Addition (+), Subtraction (โ), Multiplication (ร), Division (รท).
โ
2. Known Terms
- A constant value that we already know.
- Always expressed as a number.
- Example: 7 days in a week. The "7" is a known term.
โ 3. Unknown Terms
- A constant value that is currently hidden or not known to us.
- Expressed using simple English letters (algebraic symbols like a, b, l, h).
- Example: The height of a flagpole is h metres.
๐ฅฅ 4. Variables (The Shapeshifters)
- Values that change and do NOT have a fixed/constant value.
- Denoted using English letters (algebraic symbols like x, y, z).
- Example: The price of a coconut at the market is Rs x (prices change based on size).
- Example: The daily rainfall is y.