[" 11) find the value of "],[sin(50+A)-cos(40-A)+],[" tan i tan "10" tana "0" fan "70" tangotans? "]

Find the value of tan 40^@ times tan 50^@ .

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

Evaluate sin (50^(@) + theta) - cos (40^(@) - theta) + tan 1^(@) tan 15^(@) tan 20^(@) tan 70^(@) tan 65^(@) tan 89^(@) + sec (90^(@) - theta). cosec theta - tan (90^(@) - theta ) cot theta

The value of (tan70^(0)-tan20^(0))/(tan50^(0)) =

The value of tan10^@tan50^@tan70^@ is

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

Prove that : tan 50^@ = tan 40^@ + 2 tan 10^@ .

The value of (tan 80^@ - tan 10^(@))/( tan 70^(@))

The value of tan20^(@)+2 tan50^(@)-tan70^(@), is