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In a cyclic quadrilateral A B C D , i...

In a cyclic quadrilateral `A B C D ,` if `/_A-\ /_C=60^0,` prove that the smaller of two is `60^0`

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`/_ B - /_ D = 60` and `/_ B + /_D = 180^(@) implies /_ B = 120^(@) ` and `/_ D = 60^(@)`
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