Math Is Fun Forum

juan

Banned

greater of 2 no.

Which one is greater

OR

Bob

Administrator

Registered: 2010-06-20

Posts: 10,648

Re: greater of 2 no.

hi juan

If a^2 > b^2 then a > b  provided you stick to positive numbers.

So take each expression and square it. 

You will be left with terms that still have a square root.

Simplify and square again.

At this stage you can make a direct comparison to determine which is bigger.

If you take a look at post 14 on the thread

http://www.mathisfunforum.com/viewtopic.php?id=18016

you see a similar example.

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

juan

Banned

Re: greater of 2 no.

Thanks Bobbundy Got it