Question

3,9^4*3,9^5 alegeti rezultatul corect
a)3.9^8
b)3,9^7
c)3,9^9
d)3,9^1

Answer 1

$3,9^4 \ X \ 3,9^5=3,9^4^+^5=3,9^9 \ RASPUNS: \ 3,8^9$

Answer 2

d) puterile se aduna 4+5