Question

Fa rog frumos. Dau coroana! ​

Answer 1

Răspuns:

nu stiu cat e de corecttt

Answer 2

Răspuns:

Explicație pas cu pas:

a)

(3²*3⁻³)⁻¹= (9 *1/3 )⁻¹=(9⁽⁹*1/27⁽⁹)⁻¹=(1/3)⁻¹=1/1/3=3

b)

(7⁻¹)⁴*(7⁻²)²=(1/7) *( 1/7⁻²)²=(1/7⁴)*(1/7⁻⁴)= 1 /7⁰=1/1=1

c)

(4³*4⁻⁵)/4⁻⁴=(4⁻²)/4⁻⁴= (1/4²)/1/4⁴)= 4²=16

d)

32*2⁻⁶=2⁵*2⁻6=2⁻¹=1/2

e)

(5⁻³*5⁵)/5²*3=(5²)/25*3= 25⁽²⁵/75⁽²⁵= 1/3

f)

49*(7⁻²)²=49*7⁰=49*1=49