9^7:9^10=? ......................................................

Question

9^7:9^10=?


......................................................

Answer 1

9 ^ 7 : 9 ^ 10 = 9 ^ ( 7 - 10 ) = 9 ^ - 3 = 1 / ( 9 ^ 3 ) = 1 / 729
Ответ 1/729

Comments

спасибо)