Question

Which is the first step in simplifying the expression?

Answer 1

easy, multiply the expression by 2+divided by 2 over 3

In any other case, its D

Answer 2

`(3)/(2 + √(2) )`

To rationalise the denominator, this is a standard step:

`= (3)/(2 + √(2) ) * (2 - √(2))/(2 - √(2))`

Answer: Option A

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Let me continue to complete the question, though it is not ask for


`= (3(2 - √(2)))/((2 + √(2))(2 - √(2)) )`


`= (3(2 - √(2)))/(4 - 2 )`


`= (6 - 2√(2))/(2 )`