The 26th term of an ap whose 9th term is -6 and comman difference is 5/4
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Answer:
26th term is 61/4
Step-by-step explanation:
d = 5/4
a₉ = -6
a + 8d = - 6. [ an = a + (n - 1)d]
a + 8 x 5/4 = - 6
a + 10 = - 6
∴ a = - 16
a₂₆ = a + 25d
= - 16 + 25 x 5/4
= (- 64 + 125) /4
= 61/4
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