Discussion OF worksheet-4|| Method OF find x for any given positive real number||Example||Some identities using radical sign||Rationalization||Laws OF identities||Example based on radical sign & exponent

Discussion OF ex-8.4 || Important example based on trigonometry identities

Discussion OF worksheet-5|| Cyclicity OF number 0,1,2,3,4,5,6,7,8,9 example based on cyclicity test OF divisibility 2,3,4,5,6,7,8,9,10,11,12,26

(a) Derive and expression for the electric field at any point on the equatorial line of an electric dipole. (b) Two identical point charges, q each kept 2m apart in air. A third point charge Q of unknown magnitude and sign is placed on the line joining the charges such that the system remains in equilibrium. Find the position and nature of Q.

In the following question, a word is represented by only one set of numbers as given in any one of the alternatives. The set of numbers given in the alternatives is represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I and Matrix II are numbered as given. A letter from these matrices can be represented first by its row and next by its column, example, R can be represented by 65, 76 and S can be represented by 11, 22, etc. Identity the set for the word DEAR.