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Algebra

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 Joined: 24 May 2012 Post: 2
24 May 2012 05:03:20 IST
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rationalize the equation ?2 - ?5 - ?7 รท ?2 + ?5 + ?7
Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Algebra

√2 - √5 - √7 ÷ √2 + √5 + √7

Thank you!

Blazing goIITian

Joined: 8 Oct 2008
Posts: 8064
18 Jun 2012 13:07:34 IST
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√2 - √5 - √7 ÷ √2 + √5 + √7 ..........

you can write like this{?2-(?5+?7)}/{?2+(?5+?7)}.....now multiply with [?2-(?5+?7)} with numerator n denominator........

it will become {?2-(?5+?7)}(square)/?2)(sq) - 9?5+?7)9sq)..............

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