11) Вычислим интеграл ∫12 dx/3x⁶.
∫12 dx/3x⁶ = 1/3 ∫12 x⁻⁶ dx = 1/3 * (x⁻⁵)/(-5) |₁² = -1/15 * (1/x⁵) |₁²= -1/15 * (1/2⁵ - 1/1⁵) = -1/15 * (1/32 - 1) = -1/15 * (-31/32) = 31/480
Ответ: 31/480