the 11term of an A.P.-5, -5/2, 0, 5/2
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1
Answer:
20
Step-by-step explanation:
a = -5
d = +5/2 = 2.5
n = 11
aₙ = a + (n-1)d
⇒ a₁₁ = -5 + (11-1)2.5 = -5 + 10(2.5) = 25 - 5 = 20
Hope this helps.....
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