For what value of n, 2n x 5n ends in 5.

Let us take n = 1.21 × 51 = 10So, for no value of n, 2n × 5n ends in 5.No value of n

Q29 of 124 Page 1

For what value of n, 2ⁿ x 5ⁿ ends in 5.

Let us take n = 1.

2¹ × 5¹ = 10

So, for no value of n, 2ⁿ × 5ⁿ ends in 5.

No value of n

The product of two irrational numbers is an irrational number (True/False).

The sum of two irrational numbers is an irrational number (True/False).

If a and b are relatively prime numbers, then what is their HCF?

If a and b are relatively prime numbers, then what is their LCM?