what is the right answer
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raja66171:
solution bhejiye
use identities sinBcosC-cosBsinC /cosBcosC + sinCcosA-cosCsinA/cosAcosC + sinAcosB-cosAsinB/cosAcosB then write all the terms separately like sinBcosC/cosBcosC - cosBsinC/cosBcosC write other two terms by the same way and cancel the terms which are getting cancel then convert remaining terms in tan after all terms will be vanished
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