MCQ
If A = {1, 2, 3, 4, 5, 6}, B = {2, 4, 6, 8}, then A - B will be:
- A{1, 3, 5, 8}
- B{1, 3, 5}
- C{1, 2, 3, 4, 5, 6, 8}
- D= {}
Solution:
Given, A = {1, 2, 3, 4, 5, 6} and B = {2, 4, 6, 8}
A - B means A contains the element which is not present in B.
Thus, A − B = {1, 3, 5}
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The tangent of angle between the lines whose intercepts on the axes are a, -b and b, -a, respectively, is
$\frac{\text{a}^2-\text{b}^2}{\text{ab}}$
$\frac{\text{b}^2-\text{a}^2}{2}$
$\frac{\text{b}^2-\text{a}^2}{2\text{ab}}$