![How can tangent approach negative infinity at +Pi/2 (for example) and how can it approach positive infinity at negative pi/2? I understand why it's negative infinity at negative pi/2 ( sinx=-1, cosx=0, How can tangent approach negative infinity at +Pi/2 (for example) and how can it approach positive infinity at negative pi/2? I understand why it's negative infinity at negative pi/2 ( sinx=-1, cosx=0,](https://i.redd.it/ba5m4ieokv631.jpg)
How can tangent approach negative infinity at +Pi/2 (for example) and how can it approach positive infinity at negative pi/2? I understand why it's negative infinity at negative pi/2 ( sinx=-1, cosx=0,
![If `f(x)=tan^(-1)x-2/pi(tan^(-1)x)^2+4/pi^2(tan^(-1)x)^3-.....oo`, then the sum of integral va - YouTube If `f(x)=tan^(-1)x-2/pi(tan^(-1)x)^2+4/pi^2(tan^(-1)x)^3-.....oo`, then the sum of integral va - YouTube](https://i.ytimg.com/vi/7CH3Jovz720/maxresdefault.jpg)
If `f(x)=tan^(-1)x-2/pi(tan^(-1)x)^2+4/pi^2(tan^(-1)x)^3-.....oo`, then the sum of integral va - YouTube
![Sum the series to infinity : tan inverse (1+(1 + 1 + 1²)) + tan inverse (1+( 1 + 2 + - Maths - Inverse Trigonometric Functions - 13623319 | Meritnation.com Sum the series to infinity : tan inverse (1+(1 + 1 + 1²)) + tan inverse (1+( 1 + 2 + - Maths - Inverse Trigonometric Functions - 13623319 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5cee3d22ed42f.jpg)