Question
If the $p$ th,$q$ th and $r$ th terms of an A.P. be $a, b$ and $c$ respectively, then prove that $a(q-r)+b(r-p)+c(p-q)=0 .$
Step 1
Step 1: Let's denote the first term of the arithmetic progression (AP) as $a_1$ and the common difference as $d$. Show more…
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