pls, urgent two questions
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reddanger1012:
you look cute
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Question 11:
◆To solve this problem first break rhs into sin(B-C) form.
◆Which gives sinBcosC= -SinCcosB.And denominator gives Sin(B+C)=sinBcosC+CosBsinC.
◆Now write the cosine rules for each angle.
◆And then you can prove it dear.
◆To solve this problem first break rhs into sin(B-C) form.
◆Which gives sinBcosC= -SinCcosB.And denominator gives Sin(B+C)=sinBcosC+CosBsinC.
◆Now write the cosine rules for each angle.
◆And then you can prove it dear.
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follow the correct answer
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