Question

22 de puncte !!!!

efectuati :

a) ( 2supra3 )la puterea 0 + ( 2 supra 3 ) la puterea 1 + (2 supra 3) la puterea 2

b) ( 3 supra 5) la puterea 9 : ( 3 supra 5 ) la puterea 7

c) ( 1 cu 2 supra 5 ) la puterea 7 : ( 7 supra 5 ) la puterea 5



VA ROG AJUTATIMA !!!!!!!!!

Answer 1

a) ( 2/3 )^ 0 + ( 2 /3 ) ^1 + (2 / 3)^2=1+ ( 2 /3 ) ^+ (4/9)=9/9+6/9+4/9=19/9

b) ( 3 /5)^ 9 : ( 3 / 5 ) ^7=(3/5)^9-7=(3/5)^2=9/25

c) ( 1 cu 2 /5 ) ^7 : ( 7 /5 ) ^5 =( 7 /5 ) ^7:( 7 /5 ) ^5=( 7 /5 ) ^7-5=( 7 /5 ) ^2=48/25