DATE
PAGE
22.4
a
caso esino a x& asino u beoses
14
a² +b² = x² + y ²
prove that

1 thought on “DATE<br />PAGE<br />22.4<br />a<br />caso esino a x& asino u beoses<br />14<br />a² +b² = x² + y ²<br />prove that<br /><br />”

1. Answer:

   (a^{2}+b^{2}) (x^{2} + y^{2})= (ax+by)^{2}(a

   2

   +b

   2

   )(x

   2

   +y

   2

   )=(ax+by)

   2

   a^{2}x^{2} +a^{2}y^{2}+b^{2}x^{2} +b^{2}y ^{2} = a^{2}x^{2} +b^{2}y^{2} + 2axbya

   2

   x

   2

   +a

   2

   y

   2

   +b

   2

   x

   2

   +b

   2

   y

   2

   =a

   2

   x

   2

   +b

   2

   y

   2

   +2axby

   a^{2}y^{2} +b^{2}x^{2}=2axbya

   2

   y

   2

   +b

   2

   x

   2

   =2axby

   a^{2}y^{2} +b^{2}x^{2} -2axby = 0a

   2

   y

   2

   +b

   2

   x

   2

   −2axby=0

   (ay-bx)^{2} = 0(ay−bx)

   2

   =0

   ay – bx = 0ay−bx=0

   ay = bxay=bx

   a/x = b/ya/x=b/y

   Step-by-step explanation:

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