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Mathematics 10 Online
OpenStudy (anonymous):

Real Easy Question. Just tell me how to do these kind of questions.

OpenStudy (anonymous):

\[\sqrt{3+\sqrt{5}}\]

ganeshie8 (ganeshie8):

wat u want to do ?

OpenStudy (anonymous):

How to solve this?

OpenStudy (anonymous):

you can remove one root by squaring it

ganeshie8 (ganeshie8):

does that equal something ? to solve u need an equation

OpenStudy (anonymous):

ya you need to find the square roots

OpenStudy (anonymous):

I will give options w8

ganeshie8 (ganeshie8):

okie

OpenStudy (anonymous):

well first if I'm correct at all on this you could find the square root of 5 and then take that plus 3 and find the square root of tht??

OpenStudy (anonymous):

\[a) \sqrt{2}+1\] \[b)\sqrt{\frac{ 5 }{ 2 }}\] \[c) \sqrt{\frac{ 7 }{ 2}}-\sqrt{\frac{ 1 }{2 }}\] \[d) \sqrt{\frac{ 9 }{ 2 }}-\sqrt{\frac{ 3 }{ ? }}\]

OpenStudy (anonymous):

in option d question mark replaces 2

ganeshie8 (ganeshie8):

and, where is the full question ?

OpenStudy (anonymous):

LOL It was l\[\sqrt{3+\sqrt{5}}\]=

ganeshie8 (ganeshie8):

im not sure how does that ever equal to one of the given choices :|

ganeshie8 (ganeshie8):

sorry i give up

OpenStudy (anonymous):

No prob

OpenStudy (anonymous):

@uri @thomaster @mathstudent55 @RANE @RoseDryer @shrutipande9

OpenStudy (dumbcow):

ok key is to tranform inside as a perfect square \[\sqrt{3+\sqrt{5}} = \sqrt{\frac{1+2\sqrt{5}+\sqrt{5}^{2}}{2}} = \sqrt{\frac{(1+\sqrt{5})^{2}}{2}} = \frac{1+\sqrt{5}}{\sqrt{2}}\] that is still not equal to any of given answers though ....may be a typo?

OpenStudy (anonymous):

HEY sorry 2nd option is incomplete. i guess ur answer is right.

ganeshie8 (ganeshie8):

that was awesome @dumbcow :)

OpenStudy (anonymous):

\[\sqrt{\frac{ 5 }{ 2 }}+\sqrt{\frac{ 1 }{ 2 }}\]

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