Formula for Permutations and Combinations- Class 12 Permutations: Arrangement of objects taken some or all at a time is known as Permutation. Formula: Permutations of n different objects taken r at a…
Class 12 Chemistry : Important Questions and Topics for NEB exam 2081 Here are important Topics and Questions which are frequently asked question in neb class 12 exam . ORGANIC CHEMISTRY : SET A: Almost one sure : Ide…