tn=2n-1 the fourth term is
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4th term is 7 coz
2×4-1=7
2×4-1=7
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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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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
Please mark as brainliest if you liked the solution
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