Mathematics
Choose the correct choice in the following and justify : 11th term of the A.P. : -3, -1/2, 2, ....., is 1. 28 2. 22 3. -38 4.
Related Questions
Fill in the blanks in the following table, given that a is the first term, d the common difference and an the nth term of the AP :
S.
No.a d n an (i) 7 3 8 ----- (ii) -18 ---- 10 0 (iii) ---- -3 18 -5 (iv) -18.9 2.5 ------ 3.6 (v) 3.5 0 105 -------- Choose the correct choice in the following and justify :
30th term of the A.P. : 10, 7, 4, ….., is
97
77
-77
-87
Which term of the AP : 3, 8, 13, 18, ……., is 78 ?