Home
Class 11
MATHS
Prove that tan 70^@=tan 20^@+2 tan 50^@....

Prove that `tan 70^@`=`tan 20^@`+`2 tan 50^@`.

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that tan70^@=tan20^@+2tan50^@

Prove that tan20^(@)tan40^(@)tan80^(@)=tan60^(@) .

Prove that tan225^@ cot405^@+tan675^@ cot315^@=2

Prove that tan 3x=(3tanx-tan^3x)/(1-3tan^2x)

Show that tan1^(@)tan2^(@)...tan89^(@)=1

The value of tan 40^(@) + tan 20^(@) + sqrt(3) tan 20^(@) tan 40^(@) is equal to

Prove that tan (13pi)/12=tan (pi)/12 and express tan (pi)/12 in the form of tan(A-B).

Prove that tantheta+tan(60^(@)+theta)+tan(120^(@)+theta)=3tan3theta .

Prove that tan ^(-1) x+tan ^(-1) ((2 x)/(1-x^2))=tan ^(-1)((3 x-x^3)/(1-3 x^2)),|x|lt1/sqrt3

Prove that tan (13pi)/12=2-sqrt3