Question

Pick the condition for 'a' in the expression a when the expression is never a surd.
When 'a' is any multiple of 6.
When 'a' is a perfect square and cube.​

Answer 1

Given: When 'a' is any multiple of 6.

When 'a' is a perfect square and cube.​

To find: Pick the condition for 'a' in the expression a when the expression

Solution:

For the first statement, 'a' can be any number which is a multiple of 6.

Like 12

When 'a' is a square and a cube then the number can be 64.

It is a square of 8 and a cube of 4.