Question

Problem Set - 3

(1) The sequence -10, -6, -2, 2, ...


(2) First four terms of an A.P. are ...., whose first term is -2 and common difference is -2.

(3) What is the sum of the first 30 natural numbers ?

(4) for an given A. P. I t7=4,d=-4
then a=....

(5) for an given A. P. a=3.5,d=0,n=101,then tn = ....

(6) in for any A. P. first two terms are -3, 4 then 21 term is...

(7) if for any A. P.d=5 then t 18 -t13 = .....

(8)sum of first five multiples of 3 is..

(9) 15,10,5,...in this A. P. sum of first 10 term is....

(10) in an A. P. 1 term is 1 and the last term is 20. the sum of all terms is =399 then n=...​

Answer 1

Step-by-step explanation:

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