Question

Folosind regulile de calcul cu puteri, scrieti cat mai simplu :
a)(5 supra 7)la adoua x (5 supra 7)la atreia=
b)(11 supra 9)la 10:(11 supra 9)la a 7=
c) [(2 supra 13)la a 3] totu la a 6=
d)[(0,4)la a 2]totu la a 5=
e)(0,5)la a 3x(0,5)la a 5=
f)[1,(6)]la a 4x[1,(6)]totu la a 5=
DAU CORONITA.URGENT VA ROG.

Answer 1

a)(5/7)² x (5/7)³=(5/7)⁵
b)(11/9)¹⁰:(11/9)⁷=(11/9)¹⁰ × (9/11)⁷=(11/9)³
 c) [(2/13)³]⁶=(2/13)¹⁸
 d)[(0,4)²]⁵=(4/10)¹⁰=(2/5)¹⁰
e)(0,5)³x(0,5)⁵=(5/10)⁸=(1/2)⁸
f)[1,(6)]⁴x[1,(6)]⁵=(5/3)⁹
1,(6)=(16-1)/9=15/9=5/3