Theyre both equal to root 2 / 2 so now you have:
root 2 / 2(sinx - cosx)
But I'm failing to see where to go from that. Do you equate it to 0 and then get x=0 or 1?
Homework Statement
Find the absolute minimum of f(x)=sin(x)-cos(x) on [0,pi]
Homework Equations
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The Attempt at a Solution
I know the answer is 0 from looking at a graph, but I cannot figure out how to express my workings algebraically. The end goal of this is to do a presentation on how I...