Question

1
Div._ Roll No.
1) The first and the last terms of an AP. are 2 and 47 respectively. If the sum of all the terms
245. how many terms are there?
2) For an AP. a = 2 and d = 2.5 What is it
3) The sum of first 20 even natural numbers is
4) The first five terms of the AP with a = 6 and d = – 3 are
5) if for an AP. t7= 22 and t21= 64, what is t41?
6) The value of m for which the value of the determinant
- 18 is.





refer the photo please​

Answer 1

Answer:

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