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johnnyalln
Please Help! solve: 3tan(x/2)+3=0 for 0 < theta <180degrees
3tan(x/2)+3=0 3 tan(x/2)=-3 tan(x/2)=-1 Now, let y=x/2 then, tan(y)=-1 , 0<y<90
Now, solve for y can u?
think i am confused on how to go about solving for y..
if you take the inverse of tan to both side you will get y =-45 tan(y)=-1 arctan(y)=arctan(-1) y=-45 and since 0<y<90 then y=180-45=135
which are out of range So, NO SOLUTION of y.. Thus, NO solution of x
this range 0<y<90 for y or x in the origin problem 0<y<90 or 0<x<90
Since, 0<x<180 and y=x/2 range of y is 0<y<90