2017
Mathematics
POST UTME
The 3rd term of an A.P is and the 9th term is , find the common difference
A.
X-Y
B.
19X-17Y
C.
2X
D.
8X-4Y
Correct Answer: X-Y
Explanation
U = -----------(1)
U = ------------(2)
__________________________
*Divide through by 6
.°.
U = -----------(1)
U = ------------(2)
__________________________
*Divide through by 6
.°.
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