Question

найдите значение выражения

Answer 1

Ответ:

(3a-1/4b)(3a+1/4b):(3a-14b)=(3a-1/4b)(3a+1/4b)×1/(3a-1/4b)=3a+1/4b

3×2/3+1/4×(-1/12)=2-1/48=96/48-1/48=95/48=1 47/48