The n^( th ) term of the AP: -2 1 4 7 ... is A) 3n-5 B) 3n+5 C) 5-3n D) 3n-2
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Step-by-step explanation:
In the given A.P:
a=-2
d=1-(-2)=1+2=3.
Formula of nth term:
An=a+(n-1)×d
=> -2+(n-1)×3
=> -2+3n-3
=> 3n-5.
Option.A.3n-5.
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