Selection of Letters

JEE Mains 2015 Papers › Algebra questions › Selection of Letters

\hspace{-16}$In how many ways can the selection of $\bf{8}$ letters be done frm $\bf{24}$ letters\\\\ of which $\bf{8}$ are $\bf{'a'}$ and $\bf{8}$ are $\bf{'b'}$ and rest are unlike.

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158

Anik Chatterjee ·2013-10-08 02:08:29

24fact(8 fact)(8 fact)...??

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man111 singh Thanks Anik Chatterjee
Upvote·0· Reply ·2013-10-18 21:13:12
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1357

Manish Shankar ·2013-10-17 22:26:29

1._{0}^{8}\textrm{C}+2._{1}^{8}\textrm{C}+3._{2}^{8}\textrm{C}+4._{3}^{8}\textrm{C}+5._{4}^{8}\textrm{C}+6._{5}^{8}\textrm{C}+7._{6}^{8}\textrm{C}+8._{7}^{8}\textrm{C}+9._{8}^{8}\textrm{C}

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man111 singh Thanks Sir.
Upvote·0· Reply ·2013-10-18 21:12:50
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Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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Selection of Letters

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