Check whether the sequence 7,12, 17, 22,……….. Is an A.P., find the common difference.

Solve the following questions. (i) Check whether the sequence -3, -1,1,3 ,…. Is an A.P. If it is an A.P., find the common difference. (ii) If the 7th term of an A.P. is 40, then find S_(13) .

Solve the following questions. (i) Check whether the sequence -3, -1,1,3 ,…. Is an A.P. If it is an A.P., find the common difference. (ii) If the 7th term of an A.P. is 40, then find S_(13) .

Show that the sequence defined by a_n=5n-7 is an A.P., find its common difference.

Which of the following sequences is an A.P.? If they are A.P., find the common difference. 2,(5)/(2),3,(7)/(2)...

Which of the following sequences are A.P.? If they A.P. find the common difference. -10,-6,-2,2….

Which of the following sequences are A.P.? If they A.P. find the common difference. 0,-4,-8,-12,…

Which of the following sequences are A.P.? If they A.P. find the common difference. 2,5/2,3,7/2….

-4,-3,-2 ,………….Is the sequence an A.P. ? If so find the common difference.

Which of the following sequences are A.P.? If they A.P. find the common difference. 2,4,6,8…..

Which of the following sequences are A.P.? If they A.P. find the common difference. -1/5,-1/5,-1/5,…