15.
. va roggggg mult !!!​


15 Va Roggggg Mult class=

Răspuns :

Răspuns:

a) (-5/6)⁸=5⁸/6⁸

b)-(4/5)¹³÷(4/5)²⁰÷(-4/5)=(4/5)¹³÷(4/5)²⁰÷4/5=(4/5)-⁸=(5/4)⁸

c)(-27/64)²=729/4096

d)[(1/49)²]⁴=(1/49)⁸