Question

Sabendo que a=10 elevado a -7 b=10 elevado a 11 e c=10 elevado a - 4 determine:

a) a * b =

b) b * c =

c) a * c =

d) a * b * c =

Answer 1

Resposta:

a) $10^{-7}*10^{11}=10^{11-7}=10^{4}=10000$

b)$10^{11} *10^{-4} =10^{11-4} =10^{7} =10000000$

c)$10^{-7} *10^{-4} =10^{-7-4} =10^{-11} =0,00000000001$

d)$10^{-7} *10^{11} *10^{-4} =10^{-7+11-4} =10^{0}= 1$