Explanation

Equal sets have exactly the same elements, regardless of order.

Since A = {a, b, c} and B = {b, c, a} contain the same elements, they are equal.

Explanation

A cube has six equal square faces, each with the same dimensions.

All six faces of a cube are identical squares, making it a regular polyhedron.

Explanation

Substitute x = 1 and y = -1 into the expression:

13(x + y) = 13(1 + (-1)) = 13(0).

Therefore, 13(0) = 0.

Explanation

To solve, subtract 3/7 from 10/7:

10/7 - 3/7 = 7/7 = 1.

Therefore, the missing value is 1.

Explanation

To find the marks obtained, multiply the fraction by the total marks:

Marks obtained = 3/5 × 100

= 3 × 20

= 60

Explanation

0 is called additive identity because a + 0 = a for any number 'a'.

It does not change the value of a number when added.

Explanation

To convert (10101)₂ to decimal: = 1×2⁴ + 0×2³ + 1×2² + 0×2¹ + 1×2⁰

= 16 + 0 + 4 + 0 + 1

= 21

Explanation

A compass is used for drawing circles and arcs.

It has a pointed end for the center and a pencil or pen for marking the circle.

Explanation

For the multiplication of two matrices A (size m x p) and B (size p x n), the resulting matrix AB will have dimensions m x n.

The number of rows of A and the number of columns of B determine the dimensions of the product matrix.

Explanation

A cuboid is a 3D solid shape bounded by six rectangular faces.

Opposite faces of a cuboid are equal and each angle is a right angle.