Question

Find the 10th term of the A.P; 1, -2, -5,…..​

Answer 1

A.P; 1, -2, -5,…..........

a=t1=1

t2=-2

d=t2 - t1 = -2- 1 = -3

tn =a+(n-1)d

t10=1+9×(-3)

t10=-26

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