Question

rationalise the above ​

Answer 1

Solution:

Given

3/(√5+√2) + 7/(√5-√2)

= [3(√5-√2)+7(√5+√2)]/[(√5+√2)(√5-√2)]

= [3√5-3√2+7√5+7√2]/[(√5)²-(√2)²]

= [10√5+4√2]/(5-2)

=(10√5+4√2)/3

Or

= (2/3)[5√5+2√2]

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Answer 2

Hey !

Refer the below attachment !

Thanks !