Math, asked by shashan40371, 11 months ago

Solve the number 5 question

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Answers

Answered by lathadeviummadi

1

Answer:

ma+nb/b=mc+nd/d=>a/c=b/d

Step-by-step explanation:

=>(ma+nb)d=(mc+nd)b

=>mad+nbd=mbc+nbd

=>mad-mbc=nbd-nbd

=>m(ad-bc)=0

=>ad-bc=0/m

=>ad-bc=0

=>ad=bc

=>a/c=b/d

=>a:c::b:d

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