In a triangle \[ABC\], if \[B=3C\], then the values of \[\sqrt{\left( \frac{b+c}{4c} \right)}\] and \[\left( \frac{b-c}{2c} \right)\] are

In a triangle \[ABC\], if \[B=3C\], then the values of \[\sqrt{\left(

1.	In a triangle \[ABC\], if \[B=3C\], then the values of \[\sqrt{\left( \frac{b+c}{4c} \right)}\] and \[\left( \frac{b-c}{2c} \right)\] are
A.	\[\sin C,\sin \frac{A}{2}\]
B.	\[\cos C,\sin \frac{A}{2}\]
C.	\[\sin C,\cos \frac{A}{2}\]
D.	None of these
Answer» C. \[\sin C,\cos \frac{A}{2}\]

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In a triangle \[ABC\], if \[B=3C\], then the values of \[\sqrt{\left( \frac{b+c}{4c} \right)}\] and \[\left( \frac{b-c}{2c} \right)\] are

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