Give three examples for an ideal solutions.

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.

Write the first four terms of the A.P., when the first term 'a' and the common difference 'd' are given as follows: i] a = 10, d = 10 therefore A.P. is A.P. is 10, 20, 30, 40 . ii] a = -2, d = 0 therefore A.P. is -2 , -2, -2, -2 . iii] a=4, d=-3 therefore A.P. is 4,1,-2,-5 . iv] a=-1, d= (1)/(2) therefore A.P. is -1, - (1)/(2) ,0, (1)/(2) . v] a= -1.25, d = -0.25

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

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.