Question

Find the first four terms in the sequence an = (-10)n– 2.

Answer 1

Answer:

-12, 98, -1,002, 9,998

Step-by-step explanation:

$a_n=(-10)^n-2\\\\\text{Put}\ n=1,\ n=2,\ n=4\ \text{and}\ n=4\ \text{to}\ a_n:\\\\a_1=(-10)^1-2=-10-2=-12\\\\a_2=(-10)^2-2=100-2=98\\\\a_3=(-10)^3-2=-1,000-2=-1,002\\\\a_4=(-10)^4-2=10,000-2=9,998$