If we use a graphical method... sketch y = x and y = tanx
If you sketch to scale, you will see that the curves intersect at 0.
Noting that tan (x) > x for [0 < x < pi/2... this is can be easily proven], the next solution will be in between (pi)/2 and 3(pi)/2 and hence out of the domain given...
Yes, i definitely agree with what isplicer mentioned above.
What is important is that you enjoy the subject and put in the effort. For me personally, I initially took biology as a subject to fill up my free periods at school. However, I started to feel that it was something I was really...