Using derivative, find the approximate percentage increase in the area of a circle if its radius is increased by 2%.
Let R be the equivalence relation in the set A = {0, 1, 2, 3, 4, 5} given by R = {(a, b) : 2 divides (a –b)}. Write the equivalence class [0].
Write the number of all possible matrices of order 2 × 2 with each entry 1, 2 or 3.
For a 2 × 2 matrix A = [ ], whose elements are given by , write the value of .
If the determinant of matrix A of order 3 × 3 is of value 4, write the value of |3A|.