Question

if ABCD is a cyclic quadrilateral then prove that sin a + sin b equal to sin c + sin d
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Answer 1

Answer:

this is the answer

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Answer 2

Answer:

1. we know that in cyclic quadrilatral the opposite angle of quardiletral are equal so,
2. sin a +sin b=180
3. sin c+ sin D = 180
4. that's why both are equal