Question

Обчисліть:
$\int\limits^2_1 {\frac{1}{x^{4} } \, dx$

Answer 1

=-1/3х³=-(1/3*8-1/3)=-(-7/24)=7/24...........

Answer 2

∫₁² 1/x⁴ dx = -1/3x³ |₁² = -1/(3*8) - (-1/(3*1)) = - 1/24 +1/3 =  - 1/24 + 8/24= 7/24