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Its 9th standard question, if you know then plz answer otherwise don't yearn only for points.
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Yeah !! If I were to type just for the points :( I'd have earned no fun :)
[tex] \frac{a +b+c}{ \frac{1}{ab} + \frac{1}{bc} + \frac{1}{ca} } \\ \\ = ( a + b + c )( \frac{1}{ \frac{a+b+c}{abc} } ) \\ \\ = ( a + b + c ) ( \frac{abc}{a+b+c} ) = abc [/tex]
What I just did was --> Took LCM of the denominator part , and simplified the Question and ended up with the answer :)
Hope you find your question real trivial !!
[tex] \frac{a +b+c}{ \frac{1}{ab} + \frac{1}{bc} + \frac{1}{ca} } \\ \\ = ( a + b + c )( \frac{1}{ \frac{a+b+c}{abc} } ) \\ \\ = ( a + b + c ) ( \frac{abc}{a+b+c} ) = abc [/tex]
What I just did was --> Took LCM of the denominator part , and simplified the Question and ended up with the answer :)
Hope you find your question real trivial !!
ShuchiRecites:
but how u take lcm of ab, bc and ac as abc
Cause... ab, bc, and ac .. all divide abc Right ?
but can you multiply and get abc
And also.. maybe the word LCM isn't perfect but... normal school maths teachers prefer to call it that way !
ab × bc × ac = a²b²c²
But not abc
Ok I understood thanks
=_=
LCM and product .. Two different stuffs huh !!
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4
hey here is your answer..
I think my answer is capable for clear your confusion..
I think my answer is capable for clear your confusion..
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Thanks you very much
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