Answer:
in steps
Step-by-step explanation:
recursive formula:
A(1) = 5
A(n) = A(n-1) x (-n-1)
A(2) = 5 x (-2-1) = - 15
A(3) = - 15 x (-3-1) = 60
A(4) = 60 x (-4-1) = - 300
A(5) = - 300 x (-5-1) = 1800
