simplify each expression. tan (pi/9)+ tan (8pi/9) / (1-tan pi/9 times tan 8pi/9)

Asked on by user1552382

1 Answer | Add Yours

embizze's profile pic

embizze | High School Teacher | (Level 2) Educator Emeritus

Posted on

Simplify `(tan(pi/9)+tan((8pi)/9))/(1-tan(pi/9)tan((8pi)/9))` :

We use the identity `tan(A+B)=(tanA+tanB)/(1-tanAtanB)`



The simplified form is 0


We’ve answered 319,814 questions. We can answer yours, too.

Ask a question