Question: if a and b are the first and last terms of an arithmetic series of r+2 terms, find the second and the (r+1)th term. really struggling with this question please help
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Originally Posted by bigmansouf Question: if a and b are the first and last terms of an arithmetic series of r+2 terms, find the second and the (r+1)th term. really struggling with this question please help Please show what you have tried. We'll be able to help you better. -Dan
Originally Posted by topsquark Please show what you have tried. We'll be able to help you better. -Dan thanks 1st term = a last term = a+(n-1)d = b = (r+2)th term I managed to find the answer thanks I fought to equate r+2 term to the last term