Ответ: -4
Объяснение:
tgα = sinα /cos α tgα= 3/5 => sinα =3/x и сos α =5/x
=>sinα+cosα= (3+5)/x=8/x sinα-cosα= (3-5)/x = -2/x
=> (sinα+cosα)/(sinα -cosα) =8/x : (-2/x)= -4
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Ответ: -4
Объяснение:
tgα = sinα /cos α tgα= 3/5 => sinα =3/x и сos α =5/x
=>sinα+cosα= (3+5)/x=8/x sinα-cosα= (3-5)/x = -2/x
=> (sinα+cosα)/(sinα -cosα) =8/x : (-2/x)= -4