for an AP five times the 5th teem is equal to eight times the 8th yerm. find the 13th term of the AP
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Answer:
Step-by-step explanation:
Let "a" & "d" be the 1st term & common difference.
A/Q
5x5th term= 8x 8th term
5(a+4d)= 8(a+5 d)
a= -12d
13th term
=a + 12d
= -12d + 12d (using a= -12d)
=0.
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