Question

in a series Sn=5n²-2n then t4=​

Answer 1

Answer:

t4 = 33

Step-by-step explanation:

S1 = t1 = 3

S2 = 16

t1 + t2 = 16

t2 = 16 - 3 = 13

d = t2 - t1 = 13 - 3 = 10

t4 = t1 + 3d = 3 + 30 = 33

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