[tex] > resolucao \\ \\ \geqslant o \: 15 \: termo \: da \: pa \\ \\ \\ an = a1 + (n - 1)r \\ an = 6 + (15 - 1) - 2 \\ an = 6 + 14 \times ( - 2) \\ an = 6 + ( - 28) \\ an = 6 - 28 \\ an = - 22 \\ \\ \\ \\ > < > < > < > < > [/tex]