Mathematics · Sequences and Series
If a, b, and c are the pth, qth, and rth terms respectively of an arithmetic progression, and also the pth, qth, and rth terms of a geometric progression, then the value of ab - c × bc - a × ca - b is:
- 1(abc)a + b + c
- 2abc
- 31✓
- 40
Correct answer
1
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