Question

2.Efectuaţi: a)√(-7)² ; b), 2 3 O 5 g)√12² +5²; h)√√0,0081 c)√(-0,1)² ; d)√√√16; e)√1,69; f)√√9² +12² ;​

Answer 1

Răspuns:

Explicație pas cu pas:

2.Efectuaţi:

a)√(-7)²=√7²=7

b), √(-3/5/)²=√(3²/5²)=3/5

c)√(-0,1)²=√0,1²=0,1

d)√√√16;=√√√4²=√√4=√√2²=√2

e)√1,69=√(1,3)²=√(13/10)²=13/10=1,3

f)√(9² +12²)=√(81+144)=√225=√15²=15

g)√(12² +5²)=√(144+25)=√169=√13²=13

h)√0,0081=√(81/1000)=√(9²/100²)=9/100=0,09