📐 MATHEMATICS FORMULA OF THE DAY

📌 Quadratic Formula

For:

ax² + bx + c = 0

The roots are:

x = (−b ± √(b² − 4ac)) / 2a

💡 Remember:
D = b² − 4ac is called the discriminant.

🎯 Exam Use: Useful for finding the roots of any quadratic equation.

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📐 MATHEMATICS — FORMULA OF THE DAY

📌 Sum of First n Natural Numbers

1 + 2 + 3 + ... + n = n(n + 1) / 2

💡 Quick Tip:
For the first 100 natural numbers:

100 × 101 / 2 = 5050

🎯 Exam Use: Useful in Sequences, Series & Mathematical Reasoning.

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📐 MATHEMATICS — DID YOU KNOW?

🔢 Did you know?

The number 0.999... is exactly equal to 1!

It may look slightly smaller than 1, but mathematically:

0.999... = 1

🤯 A tiny-looking difference can completely change how we think about numbers!

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📐 MATHEMATICS — FORMULA OF THE DAY

📌 Distance Between Two Points

For points:

(x₁, y₁) and (x₂, y₂)

📏 d = √[(x₂ − x₁)² + (y₂ − y₁)²]

💡 Quick Tip:
This formula comes directly from the Pythagorean theorem.

🎯 Exam Use: Coordinate Geometry

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