Question

arccos(-1/2)+arcsin(-1/2)-arctg(-1)

не понимаюююююю.....

Answer 1

$arccos x+arcsin x=dfracpi2$

 

$arccos(-1/2)+arcsin(-1/2)-mathrm{arctg }(-1)=dfracpi2-left(-dfracpi4right)=dfrac{3pi}4$

Answer 2

acos(-1/2)+asin(-1/2)-atan(-1)

3*пи/4

2.35619449