Find the 17term of the Arithmetic Progression (A.P):-6,-1,4
A
-91
B
-86
C
74
D
79
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
common difference d = -1 - [-6] → -1 + 6
d = 5; a = -6
T\(_n\) = a + (n-1)d
: T\(_{17}\) = -6 + (17 - 1) 5
→ -6 + (16)5
→ -6 + 80 = 74
Source: WAEC / JAMB / NECO Classroom Archive (Record #64499)