Question

ME AJUDEM PORFAVOR O PREOFESSOR QUE PARA HOJE E VALE NOTA

Answer 1

Resposta:

1. a) 3^5=243

b) -2^5=-32

c) (-2)^5=-32

d)-(-2)^4=-16

e)3^-5=0,0041

g) (-raiz de 5)^0=1

h)5^0=1

2.  a) 4-1/2= 7/2

b) 13/15

c)253/100

d) -117/4

3. a) x+y =   2/3 + 0  = 2/3

b) x-y  =  2/3 - 0  = 2/3

4.  a)11^8. 11^-7= 11^8-7=11¹=11

b)10^-6 . 10¹ .10⁴= 10^-6+1+4= 10-¹

c) 3⁶÷3⁷= 3^(6-7) ==> 3^-1

d) 5⁹÷5‾³ =  5^(9+3) ==> 5^12

e) x⁵/x⁻³ = x⁵⁻⁽⁻³⁾ = x⁵⁺³ = x⁸