Question

vi) t = 256
y
170
v) w²=270
=
R
4. Every surd is an irrational, but every irrational need not be a surd. Justify your answer.
5. Rationalise the denominators of the following:
vo
1
1
iv)
D)
ii)
3+√2
√√6
√3-√2
6. Simplify each of the following by rationalising the denominator:
6 - 4√2
5 = √5
1
1)
6+42
√7√5
3-12-23
3√5-ſ
iv)
3√3+√2
ii) 17+15
7. Find the value of
✓TO - √5
22
upto three decimal places. (take 2 =1.414 and
.0.3273
V5 = 2.236)
8. Find:​

Answer 1

Answer:

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Answer 2

Answer:

vi) t = 256

y

170

v) w²=270

=

R

4. Every surd is an irrational, but every irrational need not be a surd. Justify your answer.

5. Rationalise the denominators of the following:

vo

1

1

iv)

D)

ii)

3+√2

√√6

√3-√2

6. Simplify each of the following by rationalising the denominator:

6 - 4√2

5 = √5

1

1)

6+42

√7√5

3-12-23

3√5-ſ

iv)

3√3+√2

ii) 17+15

7. Find the value of

✓TO - √5

22

upto three decimal places. (take 2 =1.414 and

.0.3273

V5 = 2.236)

8. Find: