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Don't mass tag please
And your question is?
@josedavid
What's your question?
sorry gust about that is that my comp froze
guys
@Michele_Laino
I'm not going to give you the answer but... a1 is first term, d is common difference
Thats just a hint.
okay thanks
@suckerofmath
Okay I think to be able to solve this problem you have to find the common difference, i.e. what number you would add to the previous number to achieve the next number in the sequence.
your sequence is a arithmetic progression, with first term=4 and constant=3, now the n-term is: \[a _{n}=a _{1}+(n-1)*c=4+(n-1)*3=4+3n-3=3n+1=f(n)\]
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