Question

1.A number which can be expressed as sum of two perfect cube in two different ways known as _______ number.

2. The symbol '3√' is used to denote__________.

3. If in prime factorisation of any number each factor appears three time then the number is a _______ cube.

4. If 5 appears 6 times in the prime factorisation of cube number then 5 will appear ________ in the prime factorisation as cube root of that number.

5. For a positive integer a> 1, a3 is always________ than a2.
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Answer 1

Answer:

(1) ans . 0 (2) ans . √4 (3) ans . 3 (4) ans . 11 (5) ans . 8.

Answer 2

Answer:

Physical properties of metals include:

Corrosion resistance.

Density.

Melting point.

Thermal properties.

Electrical conductivity.

Magnetic properties.