Scribd
Upload
1K views3 pages

Nda Formula Sheet

The document is a formula sheet containing essential mathematical, physics, chemistry, and biology formulas and concepts. It includes algebraic identities, trigonometric identities, geometric area and volume formulas, basic physics equations, chemistry fundamentals, and key biology points. This comprehensive reference is designed for quick access to important scientific information.

Uploaded by

siddhant srivastava
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
1K views3 pages

Nda Formula Sheet

The document is a formula sheet containing essential mathematical, physics, chemistry, and biology formulas and concepts. It includes algebraic identities, trigonometric identities, geometric area and volume formulas, basic physics equations, chemistry fundamentals, and key biology points. This comprehensive reference is designed for quick access to important scientific information.

Uploaded by

siddhant srivastava
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 3

===============================

NDA FORMULA SHEET


===============================

🧮 MATHS FORMULAS
------------------------
ALGEBRA:
• a² - b² = (a - b)(a + b)
• (a + b)² = a² + 2ab + b²
• (a - b)² = a² - 2ab + b²

TRIGONOMETRY:
• sin²θ + cos²θ = 1
• tanθ = sinθ / cosθ
• sec²θ - tan²θ = 1

GEOMETRY & MENSURATION:


• Area of triangle = ½ × base × height
• Circumference of circle = 2πr
• Area of circle = πr²
• Volume of cube = a³
• Volume of cuboid = l × b × h
• Volume of sphere = (4/3)πr³
• Surface area of sphere = 4πr²

COORDINATE GEOMETRY:
• Slope = (y₂ - y₁) / (x₂ - x₁)
• Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

⚛️PHYSICS FORMULAS
------------------------
• Speed = Distance / Time
• Acceleration = (v - u) / t
• Force = Mass × Acceleration (F = ma)
• Work = Force × Displacement
• Power = Work / Time
• Kinetic Energy = ½ mv²
• Potential Energy = mgh
• Ohm’s Law: V = IR
• Resistance in Series = R₁ + R₂ + ...
• Resistance in Parallel = 1/R = 1/R₁ + 1/R₂ + ...

🧪 CHEMISTRY BASICS
------------------------
• Atomic Number = No. of Protons
• Mass Number = Protons + Neutrons
• Valency = Combining power of element
• pH Scale: Acids < 7, Bases > 7
• HCl = Hydrochloric Acid
• NaOH = Sodium Hydroxide
• Water Formation: 2H₂ + O₂ → 2H₂O
• Law of Conservation of Mass
• Metals = Malleable, ductile, conductors
• Non-metals = Brittle, poor conductors

🧬 BIOLOGY KEY POINTS


------------------------
• Cell = Basic unit of life
• Mitochondria = Powerhouse of cell
• Photosynthesis: CO₂ + H₂O + sunlight → Glucose + O₂
• Blood:
- RBCs = Oxygen
- WBCs = Immunity
- Platelets = Clotting
• Heart = 4 chambers (2 atria, 2 ventricles)
• DNA = Genetic code carrier
• Vitamins:
A = Eyes, B = Energy, C = Immunity,
D = Bones, E = Skin, K = Clotting
• Diseases:
- Malaria (mosquito)
- Tuberculosis (bacteria)
- Diabetes (insulin-related)

You might also like