Question

Urgent!!Cele doua exercitii!Dau mai multe puncte!

Answer 1

Răspuns:

Explicație pas cu pas:

25)

a)

48*(15-35+400)

=48*(-20+400)

=48*380

= 18.240

-

b)

=√5*5+√7*7-√9*4

= √25+√49-√36

= 5+7-6

= 12-6

=6

-

d)

=√1+7*5-√11*6-2+√23*3+3*4

= √1+35-√66-2+√69+12

=√36-√64+√81

= 6-8+9

= -2+9

= 7

-

e)

=√12+13+√3*18+7*15-8-7

= √25+√54+35-15

=√25+√144

=5+12

=17

-

26)

a)

=√5⁴

=√5²*5²

= 5*5

25

-

b)

=√7²+7²*2²

=7*2

=14

-

c)

=√3²*3²*5²*5²*6²

=3*3*5*5*6

=9*5*5*6

=45*5*6

= 225*6

= 1.350

-

d)

=12*3*8

=36*8

= 288

-

e)

=21*23

=483

-

f)

=9-6+2

=5

-

h)

=64-63+4+1

=6

-

h)

=√2⁶*(49-16*3)

=√2⁶*1

= √2²*2²*2²

=2*2*2

= 8