Well, first of all, you need to keep the 2 in the argument of the first function. That is,
Next, I find it rather difficult to work with trig functions if they have differing arguments. How could you get them to have the same argument?
Hey guys.
For the chapter on max/min, I am really having no problem calculating things that lead to finding the max and min values. I seem to only reach a roadblock after you find the derivative of something involving trig. For example:
f(x)=sin(2x) + cos(x) on interval 0 </ x </ pi
So, finding derivative:
f'(x)= 2cos2x - sinx
I'm pretty bad with trig (detrimental, I know), so I don't really know how to solve for x. How can you find the critical values with such a function? A step by step explanation process would be greatly appreciated!