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प्रश्न
The 7th term of an A.P. is $$-1$$ and its 16th term is $$17$$. The nth term of the A.P. is ______.
पर्याय
$$(3n + 12)$$
$$(2n - 5)$$
$$(3n + 5)$$
$$(2n - 15)$$
MCQ
रिकाम्या जागा भरा
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उत्तर
The 7th term of an A.P. is $$-1$$ and its 16th term is $$17$$. The nth term of the A.P. is (2n – 15).
Explanation:
The common difference is $$\frac{17 - (-1)}{16 - 7} = 2$$, and the first term is $$-13$$. Hence $$\mathrm{T}_{n} = 2n - 15$$.
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