# Surds, Vectors and Proof Questions

Some Maths questions to attempt.

One you have completed them I can give you the answers if you wish. Just email me* here* and I will be happy to give you the answers, or comment below asking for the answers.

- Created by: ? Secret - Team GR
- Created on: 08-04-12 16:45

First 154 words of the document:

Q1. Expand and simplify

(2 + )(7 )

Give your answer in the form a + , where a and b are integers.

(Total 3 marks)

Q2. (a) Rationalise the denominator of

(1)

(b) Expand

Give your answer in the form a + b where a and b are integers.

(Total 3 marks)

Q3.

(a) Write down the value of k

(1)

(b) Expand and simplify (2 + 3)(1 + 3)

Give your answer in the form a + b 3

where a and b are integers

(Total 3 marks)

Q4. Tarish says,

`The sum of two prime numbers is always an even number'.

He is wrong.

Explain why.

(Total 2 marks)

Q5. The nth even number is 2n.

The next even number after 2n is 2n + 2

(a) Explain why.

(b) Write down an expression, in terms of n, for the next even number after 2n + 2

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