If cot α and cot β are the roots of the equation x2 + bx + c = 0 wit – McqOptions

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1.	If cot α and cot β are the roots of the equation x2 + bx + c = 0 with b ≠ 0, then the value of cot (α + β) is
A.	\(\frac{{{\rm{c}} - 1}}{{\rm{b}}}\)
B.	\(\frac{{1 - {\rm{c}}}}{{\rm{b}}}\)
C.	\(\frac{{\rm{b}}}{{{\rm{c}} - 1}}\)
D.	\(\frac{{\rm{b}}}{{1 - {\rm{c}}}}\)
Answer» C. \(\frac{{\rm{b}}}{{{\rm{c}} - 1}}\)

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