plz rationalize this questions
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littyissacpe8b60:
It is easy. I will do one for you
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4 + 3√5
4 - 3√5
We have to remove roots from denominator
so
( 4 + 3√5) (4+ 3√5)
(4 - 3√5) (4+3√5)
(4 + 3√5)²
4² - (3√5)²
16 + 12√5 + 45 = - ( 61 + 12√5)
16 - 45 9
3. 2/√5 for this multiply up and down with √5 . then you will et 2√5/5
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