CAT Questions

---

Proof of Sum of cubes of first n even natural numbers ::

Hence, in other words, the sum of the first n cubes is the square of the sum of the first n natural numbers.

The nutrient which provides the maximum energy is Fat. It provides the energy of 9 calories/gram.

The error lies in part (1). 

As the phrase 'as much as' needs to be replaced with 'much as I'. This is because we use 'as much as' for comparing two qualities or things. But here in the given sentence a contrast is given in the latter part of the sentence. So we need a conjunction like 'even though' 'although' etc...

'Much as I' also serves the same purpose.

IP addresses are converted to a domain name by DNS - Domain Name System.

A perfectly inelastic demand curve is perfectly vertical either up or down in any way.

Implied powers are powers of U.S. government which have not been explicitly granted by the Constitution but that is implied by the necessary and proper clause to be delegated for the purpose of carrying out the enumerated powers.

The law of conservation of mass states that in any closed system the mass of the system is neither created nor destroyed over time i.e, the mass cannot be changed overtime.

Hence, the given statement is true.

The supply curve slopes upward because for reflecting the higher price needed to cover the higher marginal cost of production.