Q4 of 51 Page 3

Simplify the following expressions:

(i) (ii) (iii)

(i)


Because:


=


=


(ii)





(iii)


=


=


=


=


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2

Simplify the following expressions :

(i) (4+) (3+)


(ii) (3+) (5 -)


(iii) ( -2)

3

Simplify the following expressions :

(i) (11+) (11-)


(ii) (5+) (5-)


(iii)


(iv) (3+) (3-)


(v)

1

Rationalise the denominator of each of the following (i-vii) :

(i) (ii) (iii) (iv) (v) (vi) (vii)

2

Find the value to three places of decimals of each of the following. It is given that

= 1.414, = 1.732, =2.236 and = 3.162.


(i) (ii) (iii) (iv)


(v) (vi)