Question

C) 101\10:[(6\5+13\6)x(2,1+6\13)] :13\9=
D) 121\25x[0,(03)] la puterea2 +3\4:[37\3x9\4-11\2x9\2

Answer 1

101/10:[(6/5+13/6)x(2,1+6/13)] :13/9=
= 101/10 : [(36/30 + 65/30) x (21/10 + 6/13)] x 9/13 =
= 101/10 : [101/30 x (273/130 + 60/130)] x 9/13 = 
= 101/10 : (101/30 x 333/130) x 9/13 = 
= 101/10 : (101*333/30*130) x 9/13 =  
= 101/10 x (30*130)/(101*333) x 9/13 = 30/37

121/25 x [0,0(3)]^2 + 3/4 : (37/3 x 9/4 - 11/2 x 9/2) = 
= 121/25 x (3/90)^2 + 3/4 : (111/4 - 99/4) = 
= 121/25 x (1/30)^2 + 3/4 : 12/4 = 
= 121/25 x 1/900 + 3/4 x 4/12 = 
= 121/ 22500 + 1/4 = 121/22500 + 5625/22500 = 5746/22500 = 2873/11250
   Dupa parerea mea, la ex. al doilea este ceva gresit in enunt ca rezultatul iese ciudat, dar corect