Page 7 - BUKU KALIN (bismillah Fix)_Bab 1
P. 7
tan = → = tan
→ = sec
2
2
√ + 2
2
2
2
2
sec = → + = sec
Sehingga,
2
1 1 sec 1 1
∫ = ∫ = ∫ = +
2
2
2
+ 2 sec
= → = tan .
Berarti,
1 1 1
∫ = + = arctan +
2
+ 2
Karena = + maka,
2
1 + 2
∫ = arctan + .
2
+ +
Contoh :
Selesaikanlah ∫ !
2
+2 +5
Jawab :
