Q1 of 51 Page 3

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

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

(i) As there is √5 in the denominator and we know that √5 x √5 = 5


So, multiply top and bottom by √5,



(ii)


(iii)


(iv)


(v)


(vi)


(vii)


More from this chapter

All 51 →
3

Simplify the following expressions :

(i) (11+) (11-)


(ii) (5+) (5-)


(iii)


(iv) (3+) (3-)


(v)

4

Simplify the following expressions:

(i) (ii) (iii)

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)

 3

Express each one of the following with rational denominator:

(i) (ii) (iii)


(iv) (v) (vi) (vii) (viii) (ix)