Răspuns:
Ai aici poza cu rezolvarea
Explicație pas cu pas:
= ( 12/5-7/5 -1/6) :( 21⁽³/90⁽³ *10/7 +1/2 )²
=(5/5-1/6 ) :( 7⁽⁷/30*10/7⁽⁷+1/2)²
= ( ⁶⁾1-1/6):( ²⁾1/3+³⁾1/2)²
= 5/6 : ( 2/6+3/6)²
=5/6: (5/6) ²
= 5/6*(6/5)²
=5⁽⁵/6⁽⁶*36⁽⁶/25⁽⁵
= 6/5
