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dakotagorski0514.02.2022 03:20Solution:

The rationalisation factor for is

So, let us apply it here.

The rationalising factor for 5 - √2 is 5 + √2.

Therefore, multiplying and dividing by 5 + √2, we have

Hope you could understand.

If you have any query, feel free to ask.

bankskry14.02.2022 03:20Step-by-step explanation:

To rationalise the denominator, multiply the numerator and denominator by the conjugate of the denominator.

the conjugate of 5 - is 5 + , then

= ← expand denominator using aFOIL

=

=