Rationise the denominator of 1 / root7-root5
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Answer:
sorry but I dont know what was the answer
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Step-by-step explanation:
1. 1. √7+√5
---------------- = ---- × ---------
√7 - √5. √7-√5. √7+√5
√7+√5. √7+√5
---------------- = -----------
7-5. 2
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