Math, asked by sureshnarnaul, 11 months ago

if x-y=7and x² +y²=169 find the value of xy

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Answered by sagnikmondal50

2

Answer:

hope it will help you...............

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Answered by Varun1870

1

x - y = 7

(x-y)^2 = 49

x^2+y^2-2xy = 49

169 -2xy =49

2xy = 120

xy = 60.

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