Question

simplify by rationalising the denominators:
(3-2√5)/(3+2√5)​

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

=(3-2√5)  /  (3+2√5)

=(3-2√5)(3-2√5)  /  (3+2√5)(3-2√5)

=(3-2√5)²  /  (3²-(2√5)²

=[3²-2*3*2√5+(2√5)²]²  /  9-20

=9-12√5+20  /  -11

=  -(29-12√5)  /  11

=  -29+12√5  /  11