plzzz ans....Thnk u....plzz ans FOURTH PART
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let a+b/b=c+d/d=e+f/f=k
a+b=bk ;b=a+b/k
c+d=dk ;d=c+d/k
e+f=fk ;f=e+f/k
bdf(a+b/b + c+d/d + e+f/f)
=bdf(bk/b + dk/d + fk/f)
=bdf(3k)cube
=bdf*27kcube
=(a+b)/k*(c+d)/k*(e+f)/k*27*k*k*k
=27(a+b)(c+d)(e+f)
a+b=bk ;b=a+b/k
c+d=dk ;d=c+d/k
e+f=fk ;f=e+f/k
bdf(a+b/b + c+d/d + e+f/f)
=bdf(bk/b + dk/d + fk/f)
=bdf(3k)cube
=bdf*27kcube
=(a+b)/k*(c+d)/k*(e+f)/k*27*k*k*k
=27(a+b)(c+d)(e+f)
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