Question

2. Calculaţi:




ajutor ​

Answer 1

Răspuns:

a) 2019⁰=1

1²⁰¹⁹=1

17²=17×17=289

b)(7²-3²):2²+7²-1²⁰²⁰=(49-9):4+49-1=40:4+49-1=10+49-1=58

c) [(14²-13²):26-2⁰]×2+2018⁰=[(196-169):26-1]×2+1=(27:26-1)×2+1=(1-1)×2+1=0×2+1=0+1=1