Page 9 - Integration Problems

2
2
1 cos ( ) /3
= [ln ( )]
2
2
2 cos ( ) + 1
0

2
2
1 3 cos ( )
3
= [ln ( )
2 2
2
3 cos ( ) + 1
3
0
2
cos (0)
− ln ( )]
0
2
cos (0) + 1

2
2
1 3 cos ( ) 1
3
= [ln ( ) − ln ( )]
2 2 2 2
3 cos ( ) + 1
3
Perform this calculation on your fx calculator, ensure

it is in radian mode (qw4).

The keystrokes for your fx-991ES; this is a two stage

2
2
calculation, first calculate cos ( ) this gives M.
3
3
qH2qLa3$$kqLa
3$)dQ(:)

5