Complete the following activity to find the number of terms in the A.P. 1,3,5,…., 149.

Complete the following activity to find the 19th term of the A.P. 10,15,20,….

Find the number of terms in the A.P 3,6,9,12,….,111

The first term of an A.P. is 5 and the common difference is 4. Complete the following activity to find the sum of first 12 terms of the A.P.

The first term of an A.P. is 5 and the common differences is 4. Complete the following activity to find the sum of first 12 terms of the A.P.

The first term of an A.P. is 5 and the common difference is 4. Complete the following activity and find the sum of first 12 terms of the A.P. Here, a=5, d=4,S_(12)=? S_(n)=(n)/(2)[.............] thereforeS_(12)=(12)/(2)[10+..........] =6xx...............=.............

Find the number of terms in the AP -3,1,5,9.......,237

Find the number of terms in the following A.P. 7, 13, 19,…..205

Find the sum to n term of the A.P.1,3,5,7.....

Fill up the boxes and find out the number of terms in A.P. 1, 3, 5, …., 149. Here, a=1d=square,t_(n)=149 t_(n)=a+(n-1)d " "therefore149=square therefore49=2n-square thereforen=square.

Find the next term of an A.P. -3,1,5,9,…..