Question 863226
an = a + (n - 1)d
0 < -1049 + (n - 1)3
1049<3*(n-1)
350<n-1
351<n
an = a + (n - 1)d
A351 = -1049 + 3(350)
A351=-1049+1050
A351=1
Answer: A351 is the first positive term.