Question

(3:8)^-1 + 3^-2 -(-2,6)^0

Answer 1

(-2.6)^0 =1

(3/8)^-1 +3-² -1 =8/3 +1/3² -1 =8/3 +1/9 -1 =(8*3 +1 -9)/9 =16/9 =1 7/9(одна целая семь девятых)