计算:[-7/5×(-5/2)-1]÷9÷1/(-0.75)的2次方-|2+(-1/2)的3次方×5的2次方|
问题描述:
计算:[-7/5×(-5/2)-1]÷9÷1/(-0.75)的2次方-|2+(-1/2)的3次方×5的2次方|
答
[-7/5×(-5/2)-1]÷9÷1 /(-0.75)²-|2+(-1/2)^3×5²|
=(7/2-1)/(9 ×16/9) -9/8
=-31/32