1/(3-2√2)=?
Choose one:
A) 9+4√5	B) 9-4√5	C) 3+2√2	D) 9-2√5	E) 4+9√5
This question requires us to rationalize (fix) the denominator.   For more on this technique, seehttps://www.gmatprepnow.com/module/gmat ... video/1044   Given: 1/(3-2√2)   Multiply top and bottom by the 3+2√2ONJUGATE of 3-2√2, which is 3+2√2   So, 1/(3-2√2) = (1)(3+2√2)/(3-2√2)(3+2√2)   = (3+2√2)/(1)   = 3+2√2   =   3+2√2
<result>C</result>
1/(3-2√2)=?