- #1
grace77
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The question:
This is the solution that was given by my teacher
Attempt:
I understand how the work is done until the 3-4 line. Where did the 1-cos2x disappear to in the 4th line?
I know you can use the outside inside method but try as I might, I can't seem to understand how the final answer was gotten??
Can someone please tell me what I'm missing here??
This is the solution that was given by my teacher
Attempt:
I understand how the work is done until the 3-4 line. Where did the 1-cos2x disappear to in the 4th line?
I know you can use the outside inside method but try as I might, I can't seem to understand how the final answer was gotten??
Can someone please tell me what I'm missing here??