Write three examples for finite AP and three for infinite AP.

Write three uses of cyclotron.

In a set of four numbers, the first three are in G.P. and the last three are in A.P. with difference 6. If the first number is the same as the fourth, find the four numbers.

Give three examples of shapes with no line of symmetry.

Give examples of three cation and three anions which are iso electronic with argon.

Write the three equations of motion.

If |x-1|,3 and |x-3| are first three terms of an increasing AP, then find the 6th term of on AP .

In four numbers given the first three numbers are in G.P. and the last three numbers are in A.P. with commor, difference 6. If the first and last numbers are equal then the are

The third term of an A.P. is 8. and the ninth term of the A.P. exceeds three times the third term by 2. Find the sum of its first 19 terms.