" (i) "tan70^(@)=tan20^(@)+2tan50^(@)

Prove that: tan70^(@)=tan20^(@)+2tan50^(@)

Prove that tan70^(@)-tan20^(@)=2tan50^(@) .

tan10^(@)-tan50^(@)+tan70^(@)

tan10^(@)-tan50^(@)+tan70^(@)=?

Prove that : tan 70^(@) = tan 20^(@) + 2 tan 50^(@)

The value of (tan70^(@)-tan20^(@))/(tan50^(@))=

The value of (tan 70^(@) -tan 20^(@))/(tan 50^(@)) is-

The value of (tan 70^(@) - tan 20^(@))/tan 50^(@) =

2tan10^(@)+tan50^(@)=2x,tan20^(@)+tan50^(@)=2y,2tan50^(@)+tan70^(@)=2w and tan20^(@)+tan70^(@)=2z which of the following is/true