Math, asked by Dhruv2019, 9 months ago

PLEASE SOLVE IT ..................

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Answered by azizalasha

1

Answer:

solved

Step-by-step explanation:

AD² = AC² - DC² = AB² - BD²

AC² - DC² = AB² - BD²

AC² = AB² + DC² - BD²

AC² = AB² + (DC - BD)( DC+BD)

AC² = AB² + BC (DC - BD)

AC² = AB² + BC (BC - BD - BD) = AB² + BC (BC - 2BD )

AC² = AB² + BC² - 2BCBD

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