Question

And the value of t9 of a sequence, given that tn=tn-1+2n and t1=1 .​

Answer 1

Answer:

89

Step-by-step explanation:

t1 = 1

t2 = 1 + 2*2 = 5

t3 = 5 + 2*3 = 11

t4 = 11 + 2*4 = 19

t5 = 19 + 2*5=29

t6 = 29 + 2*6= 41

t7 = 41 + 2*7 = 55

t8 = 55 + 2*8 = 71

t9 = 71 + 2*9 = 89