C1 series help please!
Can anyone please help me with this series question? I can't seem to get the same answer which is in the book.
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
Find the first term of the series and the common difference.
Thanks in advance.
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
Find the first term of the series and the common difference.
Thanks in advance.
Original post by reece111
Can anyone please help me with this series question? I can't seem to get the same answer which is in the book.
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
Find the first term of the series and the common difference.
Thanks in advance.
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
Find the first term of the series and the common difference.
Thanks in advance.
I suspect an error in the question, as I get some rather horrendous values.
What does the book say the answers are?
Original post by reece111
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
The sum of the first two terms of an arithmetic series is 47.
The 13th term of this series is -62
OK, the question should read.
The sum of the first two terms of an arithmetic series is 47.
The 30th term of this series is -62
Original post by ghostwalker
OK, the question should read.
The sum of the first two terms of an arithmetic series is 47.
The 30th term of this series is -62
The sum of the first two terms of an arithmetic series is 47.
The 30th term of this series is -62
That makes sense now thanks a lot!
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