The first term of an AP is 3 and the common difference is also 3 what is the AP
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a=3
d=3
Tn= a+ (n-1)d
Tn = 3+(n-1)3
= 3+3n-3
= 3n
T2 = 3*2=6
T3= 3*3 = 9
the AP is 3,6,9,12 .....
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