If tan (A+B) =m and tan (A-B)= n, Show that: tan 2B = 𝑚 𝑛/1+𝑚n - Maths - Trigonometric Functions

Question

If tan (A+B) =m and tan (A-B)= n, Show that: tan 2B =
𝑚−𝑛/1+𝑚n

Gursheen Kaur · Accepted Answer

Dear Student,
Solution) Given : tan(A + B) = m and tan(A - B) = n
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_6128984ecc191%20jpg"
style="width: 99px; height: 42px;">
Regards!

If tan (A+B) =m and tan (A-B)= n, Show that: tan 2B = 𝑚−𝑛/1+𝑚n