Posted by Nicole on Friday, November 26, 2010 at 12:27pm.
2 tanx = -√12
tanx = -√12/2
x = 60° or 240°
since the period of tanx is 180°
the general solution would be 60° + 180k
now I will switch to radians
x = π/3 or 4π/3
general solution : x = π/3 + kπ , where k is an integer
(I used my calculator to find the first angle, even though I should have recognized √12/2 as √3
I usually set my calculator to degrees, that way I recognize the standard angles if there are any.
Unless you recognize the decimal versions of radian angles, this works best for me)
Related Questions
trig 30 - Please help I need to solve the following question for x, where 0&...
algebra 2 - I'm stuck on this one problem. The directions say: Solve the ...
Intermediate Algebra - Solve x^2 + 3x + 3 = 0 -1 +- sq.rt 1-4 (1)(3) -1 +- sq.rt...
Algebra - Which radical expression is in simplified form? a.11y/sq rt 3 b.sq rt ...
algebra - please check and correct thanks Problem: solve and check the ...
trig - Hi I need to solve this question for x, where 0<x<2pi. The ...
algebra - I have 70 problems today and have trouble near the end if I can get ...
Math - Find the domain of the function. Show all work. 1 if -9 < or = x&...
Math - PLEASE HELP!!!NEED TO SOLVE: 5-(3)<10(-3)= 3<2x+1<9...
math - Saying that 4<(sq.root of x)<9 is equivalent to saying ...
For Further Reading
