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If 8,a,b,c,d, 38, 44, 50,...

Provides an A.P, find the value of a,b,c, and d.

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Tn = first term + d(n-1)
Tn = 8 + 6 (n-1)
T2 = 8 + 6(1) = 14
T3 = 8 + 6(2) = 20
T4 = 8 + 18 = 26
T5 = 8 + 24 = 32
T6 = 8 + 30 = 38, whew, agree

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