You need to understand the unit circle and trig identities to solve this.
Here's a start
and
First of all, thank you for taking the time to help me and all, much appreciated.
To my understanding, sin (2pi/3) is pretty much a third of the unit circle located in the 2nd quadrant, then we find the RAA which makes it sin(pi/3), am I correct? Also, I have some problems visualizing the unit circle. Is there any easier way to visualize if you have a question like sin (11pi/6)?
Anyways, continuing with the question
=3sin(pi/3) + 2tan (pi/4)
=3(1/2) + 2(1)
=5/2
Is this correct?