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Ejercicios tangente del angulo doble
Usando la sustitucion:tan(x2 ) = t ⇒ cos(x) = 1−t
2
1+t2⇒ sin(x) = 2t
1+t2
2dt1+t2
= dx
1.´
dx
1+sin(x)1
2.´
2dxcos(x)+sin(x)
2
3.´
dx
1+cos(x)3
1 −2tan(x
2)+1
+ C
2 2√
2ln|
√
2+(tan( x
2−1)
√
2−(tan(x
2)−1)
|+ C
3tan(x2) + C
1