Number System — Key Formulas & Points
- Laws of exponents (a, b > 0):
- aᵐ · aⁿ = aᵐ⁺ⁿ
- (aᵐ)ⁿ = aᵐⁿ
- aᵐ / aⁿ = aᵐ⁻ⁿ
- aⁿ · bⁿ = (ab)ⁿ
- a⁰ = 1
- Rationalising factor of (√a + b) is (√a − b)
- (√a + √b)(√a − √b) = a − b
Class 9 · Maths · Formula Sheets
Number System — Formula Sheets
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