SOLUTION: if a:b :: c:d, show that c^2 : d^2 = (a^2 +c^2): (b^2 + d^2)

SOLUTION: if a:b :: c:d, show that c^2 : d^2 = (a^2 +c^2): (b^2 + d^2)

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Question 389355: if a:b :: c:d, show that
c^2 : d^2 = (a^2 +c^2): (b^2 + d^2)
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
===> ====> , using the property of proportions that .
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