Question

Calculati:
a) 1,2la puterea2 -0,1la puterea 2=
b)0,2la puterea 2+0,7la puterea 2 :0,7=
c)1,3 x 1,3la puterea 3 : 1,3la puterea 2
d)2,2 x 0,3 -0,5la puterea 3:0,25

Answer 1

(1,2)²-(0,1)²=1,44-0,01=1,43
(0,2)²+(0,7)²:0,7=0,04+0,7=0,74
1,3x(1,3)³:(1,3)²=(1,3)²
2,2x0,3-(0,5)³:0,25=0,66-0,5=0,16