I can't seem to figure the rest of this out: Solve for All possible values of x: 4sin^2(x)-1=0? So far I have: Let m = sinx So: 4m^2-1=0 How would I go about solving the rest?
Follow Math Help Forum on Facebook and Google+
Originally Posted by Jd09 I can't seem to figure the rest of this out: Solve for All possible values of x: 4sin^2(x)-1=0? So far I have: Let m = sinx So: 4m^2-1=0 How would I go about solving the rest? Actually I don't really see the need for the substitution. The critical angle is pi/6. Thus if you are looking for angles between 0 and 2*pi, the possible angles are pi/6, 5*pi/6, 7*pi/6, 11*pi/6. Hope this helps.
Originally Posted by Jd09 I can't seem to figure the rest of this out: Solve for All possible values of x: 4sin^2(x)-1=0? So far I have: Let m = sinx So: 4m^2-1=0 How would I go about solving the rest? This is equivalent to Since , then or . Can you continue from here?
View Tag Cloud