Question

Rationalise the denomination of 1 / 5-√2.
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Answer 1

Answer:

5+root2/23

Step-by-step explanation:

multiply 1/5-root2 by 5+root2/5+root2

5+root2/5^2-(root2)^2

5+root2/25-2

5+root2/23

Answer 2

Step-by-step explanation:

first the square root of two = 1.414

and therefore it can also be written as 1414/1000

so,

1/5-1414/1000

LCM=1000

=200/1000-1414/1000

= -1214/1000

= -607/500

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