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Q5 pls 

Asked by Tanishq 28th October 2017, 10:26 AM
Answered by Expert
Answer:
begin mathsize 16px style Area space of space increment CAB space equals space area space of space increment CAD space plus space area space of space increment CDB
1 half basinC space equals space 1 half straight b cross times CD space sin straight C over 2 plus 1 half straight a cross times CDsin straight C over 2
CD space equals space fraction numerator 2 ab over denominator straight a plus straight b end fraction cos straight C over 2
Applying space sin space rule space in space increment CAD
CD over sinA equals fraction numerator straight b over denominator sin space angle CDA end fraction
CD equals fraction numerator straight b sinA over denominator sin open parentheses straight B plus begin display style straight C over 2 end style close parentheses end fraction end style
Answered by Expert 13th December 2017, 6:08 PM
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