Question

How do I convert x(t)=cos(t)+sin(t-pi/6) to the form Acos(wt-phi)?

Answer 1

This is more a math question

Answer 2

yea but.. its related to waves.. its an equation for travelling wave!.

so you have \[x(t) = \cos (t) + \sin(t- \pi/6)\]

Since you want the final answer in Cos form.. convert the sin function to cos function such that you would get a positive conversion.. (using allied angles )

next apply Cos(c) + cos(d) formula and gwalla.. so can you do those steps.. if you get stuck ll help you out!