[ ( 2 supra 5 ) la puterea 100 , inmultit cu , ( 5 supra 2 ) la puterea 99 ] la puterea a 2 a

Răspuns :

[(2/5)¹⁰⁰×(5/2)⁹⁹]²=

=[(2/5)¹⁰⁰×(2/5)⁻⁹⁹]²=

=[(2/5)¹]²=

=(2/5)²=4/25