In a \[\Delta ABC\] if the sides are \[a=3,\,b=5\] and \[c=4\], then \[\sin \frac{B}{2}+\cos \frac{B}{2}\] is equal to [Karnataka CET 2005]

In a \[\Delta ABC\] if the sides are \[a=3,\,b=5\] and \[c=4\], then \

1.	In a \[\Delta ABC\] if the sides are \[a=3,\,b=5\] and \[c=4\], then \[\sin \frac{B}{2}+\cos \frac{B}{2}\] is equal to [Karnataka CET 2005]
A.	\[\sqrt{2}\]
B.	\[\frac{\sqrt{3}+1}{2}\]
C.	\[\frac{\sqrt{3}-1}{2}\]
D.	1
Answer» B. \[\frac{\sqrt{3}+1}{2}\]

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In a \[\Delta ABC\] if the sides are \[a=3,\,b=5\] and \[c=4\], then \[\sin \frac{B}{2}+\cos \frac{B}{2}\] is equal to [Karnataka CET 2005]

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