math
Examples(2)
(8) What is the least number which is divisible by 2, 5, 6 and 9 and at the same time a perfect square ?
Soln. [ 2, 5, 6, 9 ] = LCM of 2, 5, 6 and 9 = 2
Arithmetical Progression (A.P.)
■Arithmetical Progression (A.P.) : If each term of a progression differs from its preceding term by a constant, then such a progression is called an arithmetical progression. This constant difference is known as common differen…