Saturday

October 25, 2014

October 25, 2014

Posted by **ann** on Friday, April 30, 2010 at 10:14pm.

use trig. identities to find the exact value.

tan 25° + tan 5° / 1- tan 25° tan 5°

- trig -
**Anonymous**, Friday, July 20, 2012 at 6:27amtan(25+5)= tan25+5/1-tan25tan5

tan(30)= tan25+5/1-tan25tan5

1/root(3)= tan25+5/1-tan25tan5

ur answer is 1/root(3)

**Answer this Question**

**Related Questions**

trig - please help me. use trig. identities to find the exact value. tan 25° + ...

Math-Trigonometry - Show that if A, B, and C are the angles of an acute triangle...

Trigonometry - Find the exact value of tan(a-b) sin a = 4/5, -3pi/2<a<-pi...

trig - Use a sum or difference identity to find the exact value. tan 25deg + ...

Precalculus/Trig 5 - Find the exact value of thet following trigonometric ...

Trig - Sum and diffence formula Finding Exact value of Tan 105-Tan 10)-15)/1+ ...

Trig - tan 15° using composite argument? - tan 15° tan (45°-30°) (tan 45° - tan ...

Trig Identities - Proving identities: 1) 1+ 1/tan^2x = 1/sin^2x 2) 2sin^2 x-1 = ...

Trig. - sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times...

Trig - Can someone check my answers so far? 1. Find the exact value of tan(-3ð) ...