Find the values of (i) 200C198, (ii) 76C0, (iii) 15C15.

(i) 200C198(ii) 76C0 [As 0! = 1] (iii) 15C15

Q5 of 68 Page 347

Find the values of (i) ²⁰⁰C₁₉₈, (ii) ⁷⁶C₀, (iii) ¹⁵C₁₅.

(i) ²⁰⁰C₁₉₈(ii) ⁷⁶C₀ [As 0! = 1] (iii) ¹⁵C₁₅

If ⁿC_r+1 = ⁿC₈ then find the value of ²²C_n.

If ³⁵C_n+7 = ³⁵C_4n–2 then find the value of n.

If ^mC₁ = ⁿC₂ prove that m = n(n – 1).

Write the value of (⁵C₁ + ⁵C₂ + ⁵C₃ + ⁵C₄ + ⁵C₅).