Question

a) Simplify and write in the simplest form: √ + √ − √2

b) Rationalise the denominator of: +√/+√3

C) Express

Answer 1

Answer:

5

32

×2

3

81

=10×4

2

×3

3

3

=120×

2

×

3

3

.

Now 2

2

1

×3

3

1

can be written as (2

3

×3

2

)

6

1

=

6

72

.

Then, 120×

2

×

3

3

= 120×

6

72

.

Therefore 5

32

×2

3

81

=120

6

72

.