If \[\Delta ={{a}^{2}}-{{(b-c)}^{2}}\], where \[\Delta \]is the area of triangle \[ABC\], then tan A is equal to [Pb. CET 1990; Kerala (Engg.) 2005]

If \[\Delta ={{a}^{2}}-{{(b-c)}^{2}}\], where \[\Delta \]is the area o

1.	If \[\Delta ={{a}^{2}}-{{(b-c)}^{2}}\], where \[\Delta \]is the area of triangle \[ABC\], then tan A is equal to [Pb. CET 1990; Kerala (Engg.) 2005]
A.	\[\frac{15}{16}\]
B.	\[\frac{8}{15}\]
C.	\[\frac{8}{17}\]
D.	\[\frac{1}{2}\]
Answer» C. \[\frac{8}{17}\]

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If \[\Delta ={{a}^{2}}-{{(b-c)}^{2}}\], where \[\Delta \]is the area of triangle \[ABC\], then tan A is equal to [Pb. CET 1990; Kerala (Engg.) 2005]

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