Question

10) If tan A + tan B = m and cot A + cot B = n, then cot (A+B) =
O am
a) 1/m-1/n
O b) 1/m + 1/n
O c)mn/mun
d) mn / m-n​

Answer 1

Answer:

Step-by-step explanation:

tanA+tanB=m cotA+cotB=n(given)

cot(A+B)=(cotAcotB-1)/cotA+cotB