Question

Vă rog ajutați-mă!Dau coroană!

Answer 1

(-1) la putere numar par = +1

(-1) la putere numar impar = -1

Answer 2

a)

( - 2)³ + 5 x [ ( - 1 ) ²⁰¹¹ + ( - 1 ) ²⁰¹⁰ + 2 x ( - 2 + 2 x 3 ) ] = 32

= - 8 + 5 x [ - 1 + 1 + 2 x ( - 2 + 6 ) ] =

= - 8 + 5 x ( 0 + 2 x 4 ) =

= - 8 + 5 x 8 =

= - 8 + 40 =

= 32

b)

( - 2 ) ¹⁰¹ : 2 ⁹⁹ - 10 x { - 3 - 3 x [ ( - 3 ) ⁵ : 3⁴ - 2 ] } =

= - ( 2) ⁽ ¹⁰¹ ⁻ ⁹⁹ ⁾ - 10 x { - 3 - 3 x [ ( - 3) ⁽ ⁵ ⁻ ⁴ ⁾ - 2 ] } =

= - ( 2) ² - 10 x [ - 3 - 3 x ( - 3 - 2 ) ] =

= - 4 - 10 x [ - 3 - 3 x ( - 5 ) ] =

= - 4 - 10 x ( - 3 + 15 ) =

= - 4 - 10 x 12 =

= - 4 - 120 =

= - 124

Obs: ( - 2) ¹⁰¹ = - 2¹⁰¹ : ( - ) la putere impara = ( - )

c )

5³ x { 14 x ( - 1 )³⁵ + ( - 1 ) ³⁴ - 5 x [ 5 - 4 : ( - 2) ] } : 2³ =

= 125 x [ 14 x ( - 1) + 1 - 5 x ( 5 + 2) ] : 2³ = - 750

= 125 x ( - 14 + 1 - 5 x 7 ) : 8 =

= 125 x ( - 13 - 35 ) : 8 =

= 125 x ( - 48 ) : 8 =

= 125 x ( - 6 ) =

= - 750