Math, asked by idduidrees25, 1 year ago

tn=2n-1 the fourth term is

Answers

Answered by himanshu2002
0
4th term is 7 coz
2×4-1=7
Answered by gaurav2013c
3
Tn = 2n-1
a+(n-1)d = 2n - 2 +1
a+(n-1)d = 2(n-1) +1
a+(n-1)d = 1 + (n-1)2

Comparing both sides, we get
a= 1
d= 2

T4 = a+3d
T4 = 1 + 3*2
T4 = 7

Hope it help you

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