## Trending News

Promoted

Anonymous

# 15. Find the EXACT value of tan 5π /4 + tan π/3 ?

precalc

### 6 Answers

Relevance

- PhilipLv 61 month ago
tan(5pi/4) = tan(pi + pi/4) = tan(pi/4) = 1.;

tan(pi/3) = sin(pi/3)/cos(pi/3) = (rt3/2)/(1/2) = rt3, where rt = "square root of".;

Adding gives 1+rt3 as the answer.

- How do you think about the answers? You can sign in to vote the answer.
- DannyLv 52 months ago
Do your own homework. Can get help on how to figure it out, but don't ask for answer as you'll never learn.

- PuzzlingLv 72 months ago
Remember that tan = sin / cos.

Also use your unit circle:

sin(5π/4) = (-√2)/2

cos(5π/4) = (-√2)/2

tan(5π/4) = 1

sin(π/3) = (√3)/2

cos(π/3) = 1/2

tan(π/3) = √3

Answer:

1 + √3

Still have questions? Get your answers by asking now.