Question

Please help me solve

Answer 1

a(67) = 190

Explanation:

a(n) = a(n-1) + 3

Now for a(n + 1):

a(n+1) = a(n) + 3

Replacing a(n):

a(n+1) = a(n-1) +3 +3

From there you can see that +3 is multiplied by the number of terms

a(67) = a(0) + 3 * 67

a(67) = -11 + 201 = 190