Question

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Плиз хелп!

Answer 1

$( frac{ay+1}{(y-1)(y+1)} - frac{a}{y-1} )+ frac{a}{y(y+1)} : frac{1}{y(y+1)} = \ \ frac{ay+1-a(y+1)}{y(y-1)(y+1)}+ frac{a}{y(y+1)} * frac{y(y+1)}{1} = \ \ frac{ay+1-ay-1}{(y-1)(y+1)} +a=0+a=a$

$( frac{ x^{ frac{5}{12} } }{ x^{ frac{1}{3} } } + frac{ x^{ frac{1}{4} } }{ x^{ frac{1}{6} } } )* x^{- frac{1}{12} } = \ \ ( frac{ x^{ frac{5}{12} } }{ x^{ frac{1}{3} } } )* x^{ -frac{1}{12} } +( frac{ x^{ frac{1}{4} } }{ x^{ frac{1}{6} } } )* x^{- frac{1}{12} } = \ \ (frac{ x^{ frac{4}{12} } }{ x^{ frac{1}{3} } } )+( frac{ x^{ frac{2}{12} } }{ x^{ frac{1}{6} } } )= \ \ frac{ x^{ frac{1}{3} } }{ x^{ frac{1}{3} } } + frac{ x^{ frac{1}{6} } }{ x^{ frac{1}{6} } } =1+1=2$

Answer 2

Рада за тебя!