a0 + a1 + a2 + a3 + a4 + a5.

Lời giải:

Tương tự câu a, ta có: \({a_0} = 1,\,\,{a_1} = - \frac{5}{2},\,{a_2} = \frac{5}{2},\,\,{a_4} = \frac{5}{{16}},\,\,{a_5} = - \frac{1}{{32}}\).

Do đó, a₀ + a₁ + a₂ + a₃ + a₄ + a₅ = \(1 + \left( { - \frac{5}{2}} \right) + \frac{5}{2} + \left( { - \frac{5}{4}} \right) + \frac{5}{{16}} + \left( { - \frac{1}{{32}}} \right)\)\( = \frac{1}{{32}}\).

Vậy a₀ + a₁ + a₂ + a₃ + a₄ + a₅ \( = \frac{1}{{32}}\).