If in a triangle \[ABC,a=5,b=4,A=\frac{\pi }{2}+B\], then C [Kerala (Engg.) 2005]

Is \[2{{\tan }^{-1}}\frac{1}{40}\]

Is \[{{\tan }^{-1}}\left( \frac{1}{9} \right)\]

Is \[{{\tan }^{-1}}\frac{1}{40}\]

Is\[2{{\tan }^{-1}}\left( 1/9 \right)\]

If in a triangle \[ABC,a=5,b=4,A=\frac{\pi }{2}+B\], then C [Keral

1.	If in a triangle \[ABC,a=5,b=4,A=\frac{\pi }{2}+B\], then C [Kerala (Engg.) 2005]
A.	Is \[{{\tan }^{-1}}\left( \frac{1}{9} \right)\]
B.	Is \[{{\tan }^{-1}}\frac{1}{40}\]
C.	Cannot be evaluated
D.	Is\[2{{\tan }^{-1}}\left( 1/9 \right)\]
E.	Is \[2{{\tan }^{-1}}\frac{1}{40}\]
Answer» E. Is \[2{{\tan }^{-1}}\frac{1}{40}\]

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If in a triangle \[ABC,a=5,b=4,A=\frac{\pi }{2}+B\], then C [Kerala (Engg.) 2005]

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