1.

In an arithmetic progression, if\[{{\text{t}}_{\text{p}}}\text{=q},{{\text{t}}_{\text{q}}}=\text{p},\]find \[{{\text{t}}_{\text{pq}}}\].

A. \[\text{p}+\text{q}-\text{pq}\]
B. \[\text{p}+\text{q}\]
C. \[~\text{p}-\text{q}+\text{pq}\]
D. \[\text{pq}-\text{p}-\text{q}\]
Answer» B. \[\text{p}+\text{q}\]


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