TECH-111
9 - Approximation & Estimation (12 Techniques)
Target: 3s
Reciprocal Approximation Formula
$\\frac{1}{1+x} \\approx 1 - x$ for $ \\| x \\| \\ll 1$.
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Relevant Entrance Exams
JEE_MAIN
NEET
CET
Prerequisites
Common Student Traps
- •Applying shortcut when boundary assumptions fail
- •Mental arithmetic carrying slip under time pressure
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Supporting free calculation training for competitive exam aspirants.