📐 Mathematics · Chapter-Wise Mock Test
~1 questions per paper · 5% Mathematics weightage
(a+b)^n = Σ ⁿCᵣ aⁿ⁻ʳ bʳT_{r+1} = ⁿCᵣ aⁿ⁻ʳ bʳMiddle term: n even → (n/2+1)thCoefficient of xᵣ: compare powersFinding specific term (T_{r+1}), identifying the middle term, finding coefficient of a specific power of x (by comparing exponents), sum of binomial coefficients (using x=1 or x=-1), and greatest term appear most frequently.
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