Saturday

August 23, 2014

August 23, 2014

Posted by **Anonymous** on Wednesday, November 12, 2008 at 7:58pm.

tan (45°-30°)

(tan 45° - tan 30°)/1+ tan 45°tan30°

(1-√3/3)/(1+1√3/3)

then i donnt what to do/ chancel out. Can someone finish it if i didnt get it wrong.

thanks in advance

- Trig - tan 15° using composite argument? -
**bobpursley**, Wednesday, November 12, 2008 at 8:03pmI would rationalize the denominator

(1-1/3 sqrt3)^2/(1-1/3)=3(1-1/3 sqrt3)^2/2

**Related Questions**

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

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

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

maths - Derivative of √ tan x is, Answer: A. sin 2 x/ √ tan x B. cos...

trig - h t t p : / / i m g 4 0 . i m a g e s h a c k . u s / c o n t e n t . p h...

calculus - can anyone tell me if tan-1x= 1 over tan x? No. They are different. ...

Calculus - Evaluate the limit as h -> 0 of: [tan (pi/6 + h) - tan(pi/6)]/h I ...

Integration - Intergrate ¡́ sec^3(x) dx could anybody please check this answer. ...

Trig-Weird Geometry Problem - Determine all triangles ABC for which tan(A-B)+tan...

calculus - If limit as delta x approaches 0 of tan(0+Δx)-tan(0)/Δx =1 ...