Question

Simplifique as operações reduzindo-as a uma unica potencia

a) π^7 . π ^ -2=

b) (π ^ -4)^-2=

c) (π ^2 . π ^3)^5=

Answer 1

vamos lá...

$a) ~~ \pi ^7. \pi ^{-2}= \pi ^{7-2}= \pi ^5 \\ \\ b)~~~( \pi ^{-4})^{-2}= \pi ^8 \\ \\ c)~~( \pi ^2. \pi ^3)^5=( \pi ^{2+3})^5=( \pi ^5)^5= \pi ^{25}$