Hi, I don't know where to start on this problem:
Any hints will be appreciated, thanks.
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Hi, I don't know where to start on this problem:
Any hints will be appreciated, thanks.
Start by eliminating the absolute value. Do this by deducing all the places between the upper and lower bounds of integration where sin x  cos x is negative. Split the question up into separate integrals summed for each region, using multiplication by 1 to make the negative sections positive.
Then integrate as per normal.
Hello,
Before this point, cos decreases and sin increases.
So before , cos > sin > sin  cos < 0
Recall that
This gives
Hello, MagicS06!
Quote:
Code:
* * * *
 * :
 * : * :
* : *:
 : :
 *  +  *  
0 ¼π ½π

On
. . The area is: .
On
. . The area is: .
Go for it!