Tan20^°+2tan50^°-tan70^°

Open in App

Solution

Suggest Corrections

Similar questions

tan 70^{\circ} = tan 20^{\circ} + 2 tan 50^{\circ}

tan 20^{\circ} + 2 tan 50^{\circ} - tan 70^{\circ}

Prove that $t a n 70^{\circ} = t a n 20^{\circ} + 2 t a n 50^{\circ} .$
Or

Prove that $1 + c o s 2 x + c o s 4 x + c o s 6 x = 4 c o s x c o s 2 x c o s 3 x$

tan 20^{\circ} + 2 tan 50^{\circ} =

\frac{tan 70^{\circ} - tan 20^{\circ}}{tan 50^{\circ}}

Join BYJU'S Learning Program