Monday

November 24, 2014

November 24, 2014

Posted by **Tara** on Saturday, January 9, 2010 at 10:40am.

3tan^2u=1

tan^2u=1/3

sq. root of (tan^2u)=sq. root of (1/3)

tanu=sq. root of (3)/3

tanu=sq. root of 1

Did I do this one right? If not, could you please show me the correct method??

Thanks!

- Trig -
**drwls**, Saturday, January 9, 2010 at 11:24amI don't understand your last step.

From tanu=sq. root of (3)/3

The next step would be

u = tan^-1[1/(sqrt3)]= 30 degrees

(or 210 degrees)

Your first steps are OK, until the last line.

**Answer this Question**

**Related Questions**

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

math - tan (u-v) given sin u=3/4 and cos v= -5/13 with U and V in quadrant 2 Use...

mathematics - 1.)Sin^-1(x)+Sin^-1(y)+Sin^-1(z)= pie Prove that X.root(1-y^2)+y....

calculus - Show that tan^3(x)-8(tan^2(x))+17(tan(x)0-8 = 0 has a root in [0.5, 0...

trig - Given that tan 45=1, use tan(x+y) to show that tan 22.5= /2 - 1. (/is ...

Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

math - Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the ...

Calc - y= cube root (1+tan(t)) OR y= (1+tan(t))^(1/3) The answer I got was y'= (...

trig - what is the exact value of cos(x+y) if tan=x sqare root 3 over 3 and sin ...

PreCalculus - Hi I need some assistance on this problem find the exact value do ...