2009-11-15, 01:56 AM
So, I finally understood how to do that question (though i messed that up for the assignment)
I'm suppose to rearrange the equation into
arcsin ((x-1)/(x+1))-2arctan(sqrt(x))-(pi/2)=0
then let f(x)=arcsin ((x-1)/(x+1))-2arctan(sqrt(x))-(pi/2)
take the derivate, and f '(x)=0
since f '(x)=0 that means f(x) is a constant for all value of x, plug in any number for f(x) and it =0.
I'm suppose to rearrange the equation into
arcsin ((x-1)/(x+1))-2arctan(sqrt(x))-(pi/2)=0
then let f(x)=arcsin ((x-1)/(x+1))-2arctan(sqrt(x))-(pi/2)
take the derivate, and f '(x)=0
since f '(x)=0 that means f(x) is a constant for all value of x, plug in any number for f(x) and it =0.