Math, asked by Sudhir1188, 1 year ago

plz q no. 4 plz help

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Answered by nitin777
0
i think the question has misprint



this is my best

sin(B + C/2)= sin (180 - A/2)

(because in a right angle triangle
A + B + C = 180 ANGLE SUM PROPERTY)


As = sin (90 - A/2)


: cos (A/2)
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