b/(_m_2 + 1)
–bm/(_m_2 + 1)
–b/(_m_2 – 1)
–b/(m + 1)
bm/(_m_2 + 1)
In the equation below, , , and are non-zero numbers. What is the value of in terms of and ?
, 
, and 
are non-zero numbers. What is the value of 
in terms of 
and 
?