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Given that sqrt(2)=1. 414\ a n d\ sqrt(5...

Given that `sqrt(2)=1. 414\ a n d\ sqrt(5)=2. 236 ,` evaluate each of the following `sqrt((36)/5)` (ii) `sqrt((625)/(98))`

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(i) `sqrt((36)/5)`
`=sqrt((6times6)/5)`
`=6/sqrt5`
`=6/2.236`
`=2.683`

(ii) `sqrt((625)/(98))`
`=sqrt((25times25)/(2times49))`
`=sqrt((25times25)/(2times7times7))`
`=25/(7sqrt2)`
`=25/(7times1.414)`
`=25/9.899`
`=2.525`
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