Please answer this simple question!!

true or false?

https://media.glynlyon.com/g_geo_2012/11/test26.gif

i think its true! or is it..?

Question

Please answer this simple question!!

true or false?

https://media.glynlyon.com/g_geo_2012/11/test26.gif

i think its true! or is it..?

anonymous · Answer

it is

ttop0816 · Answer

thank you!

anonymous · Answer

By cross-multiplying, you'll get 5a = 2b for both equations.

ttop0816 · Answer

yes i got it now (:

tkhunny · Answer

Do not "cross-multiply".  That is far too much effort for this problem and is generally annoying, anyway.

If two non-zero numbers are equal, so are their reciprocals.  Done!

anonymous · Answer

I agree with you, tkhunny; however, cross-multiplying is one of the simplest ways to prove this answer correct.

tkhunny · Answer

"cross-multiplying" is simple.  I'll give you that.  It is also misleading and grossly misunderstood.  Personally, I think the term should be removed from all text books.  But that's just me.  Not everyone agrees.

There is no need to prove the answer correct.  They are reciprocals.  It is already proven.