Question

Va rog repede ex 1 dau coroana!!!

Answer 1

1.
1/3:[ 2⁻¹ :( -1/2)²] +(-0,1)³ * (0,1)⁻¹ =1/3:[ 1/2 :(-1/4)]  +1/100 * 10 =

= 1/3: ( - 2)+ 1/10= -1/6 + 1/10= -10/60+6/60= -4/60 = -1/ 15

2.
(-1/2) ¹⁹⁹⁸ * 2⁻¹⁹⁹⁹ *1/2⁻¹⁹⁹⁹ * (-2)¹⁹⁹⁸=(-1/2) ¹⁹⁹⁸* (-2)¹⁹⁹⁸ * 1/2¹⁹⁹⁹ * 2¹⁹⁹⁹ =

= (2/2)¹⁹⁹⁸ * (2/2)¹⁹⁹⁹= 1 * 1 =1


3.
[ 3* (1/3)⁻¹ - 1] : 1/3 + (0,5)² : 5/2= (3*3 -1) : 1/3 + 1/4 : 5/2= 8*3+1/4*2/5=

=24+1/10= 241/10 =24,1

4.
( -3/10 - 1/15) *[ (-1/2)³ - 1,8 : ( -0,06)] - [ (-1,41(6)]² =(  -45/150 - 10/150) *

*( -1/8 - 30) -(17/12)²= - 55/150 *( -1/8-240/8) - 289/144=

= -11/30* -241/8 + 289/144= 2651/240  + 289/144= 4699/360